diff --git a/source/data/data.json b/source/data/data.json
index 5a83906..61b9fd2 100644
--- a/source/data/data.json
+++ b/source/data/data.json
@@ -80,143 +80,201 @@
     "ltriangle": {"symbol": "◃", "types": ["bin"]}, "tltriangle": {"symbol": "◃", "types": ["ord"]},
     "cap": {"symbol": "∩", "types": ["bin"]},
     "cup": {"symbol": "∪", "types": ["bin"]},
-    "ccap": {"symbol": "⋒", "types": ["bin"]},
-    "ccup": {"symbol": "⋓", "types": ["bin"]},
+    "xcap": {"symbol": "⋒", "types": ["bin"]}, "ccap": {"symbol": "⋒", "types": ["bin"]},
+    "xcup": {"symbol": "⋓", "types": ["bin"]}, "ccup": {"symbol": "⋓", "types": ["bin"]},
     "sqcap": {"symbol": "⊓", "types": ["bin"]},
     "sqcup": {"symbol": "⊔", "types": ["bin"]},
-    "ssqcap": {"symbol": "⩎", "types": ["bin"]},
-    "ssqcup": {"symbol": "⩏", "types": ["bin"]},
+    "xsqcap": {"symbol": "⩎", "types": ["bin"]}, "ssqcap": {"symbol": "⩎", "types": ["bin"]},
+    "xsqcup": {"symbol": "⩏", "types": ["bin"]}, "ssqcup": {"symbol": "⩏", "types": ["bin"]},
     "wedge": {"symbol": "∧", "types": ["bin"]},
     "vee": {"symbol": "∨", "types": ["bin"]},
     "barwedge": {"symbol": "⊼", "types": ["bin"]},
     "barvee": {"symbol": "⊽", "types": ["bin"]},
     "veebar": {"symbol": "⊻", "types": ["bin"]},
-    "wwedge": {"symbol": "⩕", "types": ["bin"]},
-    "vvee": {"symbol": "⩖", "types": ["bin"]},
-    "varwwedge": {"symbol": "⩓", "types": ["bin"]},
-    "varvvee": {"symbol": "⩔", "types": ["bin"]},
+    "xwedge": {"symbol": "⩕", "types": ["bin"]}, "wwedge": {"symbol": "⩕", "types": ["bin"]},
+    "xvee": {"symbol": "⩖", "types": ["bin"]}, "vvee": {"symbol": "⩖", "types": ["bin"]},
+    "varxwedge": {"symbol": "⩓", "types": ["bin"]}, "varwwedge": {"symbol": "⩓", "types": ["bin"]},
+    "varxvee": {"symbol": "⩔", "types": ["bin"]}, "varvvee": {"symbol": "⩔", "types": ["bin"]},
     "pitchfork": {"symbol": "⋔", "types": ["bin"]},
     "percent": {"symbol": "%", "types": ["bin", "txt"]},
     "atsym": {"symbol": "@", "types": ["bin", "txt"]},
-    "eq": {"symbol": "=", "types": ["rel"]}, "neq": {"symbol": "≠", "types": ["rel"]},
+    "eq": {"symbol": "=", "types": ["rel"]},
+    "neq": {"symbol": "≠", "types": ["rel"]},
     "asiansim": {"symbol": "≒", "types": ["rel"]},
     "varasiansim": {"symbol": "≓", "types": ["rel"]},
-    "coloneqq": {"symbol": ":=", "types": ["rel"]},
-    "eqqcolon": {"symbol": "=:", "types": ["rel"]},
-    "ccoloneqq": {"symbol": "::=", "types": ["rel"]},
-    "eqqccolon": {"symbol": "=::", "types": ["rel"]},
-    "equiv": {"symbol": "≡", "types": ["rel"]}, "nequiv": {"symbol": "≢", "types": ["rel"]},
+    "coloneq": {"symbol": ":=", "types": ["rel"]}, "coloneqq": {"symbol": ":=", "types": ["rel"]},
+    "eqcolon": {"symbol": "=:", "types": ["rel"]}, "eqqcolon": {"symbol": "=:", "types": ["rel"]},
+    "xcoloneq": {"symbol": "::=", "types": ["rel"]}, "xcoloneqq": {"symbol": "::=", "types": ["rel"]}, "ccoloneqq": {"symbol": "::=", "types": ["rel"]},
+    "eqxcolon": {"symbol": "=::", "types": ["rel"]}, "eqqxcolon": {"symbol": "=::", "types": ["rel"]}, "eqqccolon": {"symbol": "=::", "types": ["rel"]},
+    "equiv": {"symbol": "≡", "types": ["rel"]},
+    "nequiv": {"symbol": "≢", "types": ["rel"]},
     "colonequiv": {"symbol": ":≡", "types": ["rel"]},
-    "eequiv": {"symbol": "≣", "types": ["rel"]},
-    "coloneqquiv": {"symbol": ":≣", "types": ["rel"]},
-    "sim": {"symbol": "∼", "types": ["rel"]}, "nsim": {"symbol": "≁", "types": ["rel"]},
+    "xequiv": {"symbol": "≣", "types": ["rel"]}, "eequiv": {"symbol": "≣", "types": ["rel"]},
+    "colonxequiv": {"symbol": ":≣", "types": ["rel"]}, "coloneequiv": {"symbol": ":≣", "types": ["rel"]},
+    "sim": {"symbol": "∼", "types": ["rel"]},
+    "nsim": {"symbol": "≁", "types": ["rel"]},
     "colonsim": {"symbol": ":∼", "types": ["rel"]},
-    "simeq": {"symbol": "≃", "types": ["rel"]}, "nsimeq": {"symbol": "≄", "types": ["rel"]},
+    "simeq": {"symbol": "≃", "types": ["rel"]},
+    "nsimeq": {"symbol": "≄", "types": ["rel"]},
     "colonsimeq": {"symbol": ":≃", "types": ["rel"]}, 
     "eqsim": {"symbol": "≂", "types": ["rel"]},
     "coloneqsim": {"symbol": ":≂", "types": ["rel"]},
-    "cong": {"symbol": "≅", "types": ["rel"]}, "ncong": {"symbol": "≇", "types": ["rel"]},
+    "cong": {"symbol": "≅", "types": ["rel"]},
+    "ncong": {"symbol": "≇", "types": ["rel"]},
     "coloncong": {"symbol": ":≅","types":  ["rel"]},
-    "approx": {"symbol": "≈", "types": ["rel"]}, "napprox": {"symbol": "≉", "types": ["rel"]},
+    "approx": {"symbol": "≈", "types": ["rel"]},
+    "napprox": {"symbol": "≉", "types": ["rel"]},
     "colonapprox": {"symbol": ":≈", "types": ["rel"]},
     "approxeq": {"symbol": "≊", "types": ["rel"]},
     "colonapproxeq": {"symbol": ":≊","types":  ["rel"]},
-    "aapprox": {"symbol": "≋", "types": ["rel"]},
-    "colonaapprox": {"symbol": ":≋","types":  ["rel"]},
+    "xapprox": {"symbol": "≋", "types": ["rel"]}, "aapprox": {"symbol": "≋", "types": ["rel"]},
+    "colonxapprox": {"symbol": ":≋","types":  ["rel"]}, "colonaapprox": {"symbol": ":≋","types":  ["rel"]},
     "smile": {"symbol": "\uDB81\uDDAA", "types": ["rel"]},
     "largesmile": {"symbol": "⌣", "types": ["rel"]},
     "frown": {"symbol": "\uDB81\uDDAB", "types": ["rel"]},
     "largefrown": {"symbol": "⌢", "types": ["rel"]},
     "closure": {"symbol": "\uDB81\uDDAC", "types": ["rel"]},
-    "asymp": {"symbol": "≍", "types": ["rel"]}, "nasymp": {"symbol": "≭", "types": ["rel"]},
+    "asymp": {"symbol": "≍", "types": ["rel"]},
+    "nasymp": {"symbol": "≭", "types": ["rel"]},
     "bumpeq": {"symbol": "≏", "types": ["rel"]},
     "bumpbump": {"symbol": "≎", "types": ["rel"]},
     "eqcirc": {"symbol": "≖", "types": ["rel"]},
-    "gt": {"symbol": ">", "types": ["rel"]}, "ngt": {"symbol": "≯", "types": ["rel"]},
-    "ls": {"symbol": "<", "types": ["rel"]}, "nls": {"symbol": "≮", "types": ["rel"]},
-    "geq": {"symbol": "≥", "types": ["rel"]}, "ngeq": {"symbol": "≱", "types": ["rel"]}, "gneq": {"symbol": "⪈", "types": ["rel"]}, 
-    "leq": {"symbol": "≤", "types": ["rel"]}, "nleq": {"symbol": "≰", "types": ["rel"]}, "lneq": {"symbol": "⪇", "types": ["rel"]},
-    "geqq": {"symbol": "≧", "types": ["rel"]}, "gneqq": {"symbol": "≩", "types": ["rel"]},
-    "leqq": {"symbol": "≦", "types": ["rel"]}, "lneqq": {"symbol": "≨", "types": ["rel"]},
-    "gsim": {"symbol": "≳", "types": ["rel"]}, "ngsim": {"symbol": "≵", "types": ["rel"]}, "gnsim": {"symbol": "⋧", "types": ["rel"]},
-    "lsim": {"symbol": "≲", "types": ["rel"]}, "nlsim": {"symbol": "≴", "types": ["rel"]}, "lnsim": {"symbol": "⋦", "types": ["rel"]},
-    "gapprox": {"symbol": "⪆", "types": ["rel"]}, "gnapprox": {"symbol": "⪊", "types": ["rel"]},
-    "lapprox": {"symbol": "⪅", "types": ["rel"]}, "lnapprox": {"symbol": "⪉", "types": ["rel"]},
+    "gt": {"symbol": ">", "types": ["rel"]},
+    "ngt": {"symbol": "≯", "types": ["rel"]},
+    "ls": {"symbol": "<", "types": ["rel"]},
+    "nls": {"symbol": "≮", "types": ["rel"]},
+    "geq": {"symbol": "≥", "types": ["rel"]},
+    "ngeq": {"symbol": "≱", "types": ["rel"]},
+    "gneq": {"symbol": "⪈", "types": ["rel"]}, 
+    "leq": {"symbol": "≤", "types": ["rel"]},
+    "nleq": {"symbol": "≰", "types": ["rel"]},
+    "lneq": {"symbol": "⪇", "types": ["rel"]},
+    "geqq": {"symbol": "≧", "types": ["rel"]},
+    "gneqq": {"symbol": "≩", "types": ["rel"]},
+    "leqq": {"symbol": "≦", "types": ["rel"]},
+    "lneqq": {"symbol": "≨", "types": ["rel"]},
+    "gsim": {"symbol": "≳", "types": ["rel"]},
+    "ngsim": {"symbol": "≵", "types": ["rel"]},
+    "gnsim": {"symbol": "⋧", "types": ["rel"]},
+    "lsim": {"symbol": "≲", "types": ["rel"]},
+    "nlsim": {"symbol": "≴", "types": ["rel"]},
+    "lnsim": {"symbol": "⋦", "types": ["rel"]},
+    "gapprox": {"symbol": "⪆", "types": ["rel"]},
+    "gnapprox": {"symbol": "⪊", "types": ["rel"]},
+    "lapprox": {"symbol": "⪅", "types": ["rel"]},
+    "lnapprox": {"symbol": "⪉", "types": ["rel"]},
     "eqg": {"symbol": "⋝", "types": ["rel"]},
     "eql": {"symbol": "⋜", "types": ["rel"]},
     "eqqg": {"symbol": "⪚", "types": ["rel"]},
     "eqql": {"symbol": "⪙", "types": ["rel"]},
     "simg": {"symbol": "⪞", "types": ["rel"]},
     "siml": {"symbol": "⪝", "types": ["rel"]},
-    "gl": {"symbol": "≷", "types": ["rel"]}, "ngl": {"symbol": "≹", "types": ["rel"]},
-    "lg": {"symbol": "≶", "types": ["rel"]}, "nlg": {"symbol": "≸", "types": ["rel"]},
+    "gl": {"symbol": "≷", "types": ["rel"]},
+    "ngl": {"symbol": "≹", "types": ["rel"]},
+    "lg": {"symbol": "≶", "types": ["rel"]},
+    "nlg": {"symbol": "≸", "types": ["rel"]},
     "geql": {"symbol": "⋛", "types": ["rel"]},
     "leqg": {"symbol": "⋚", "types": ["rel"]},
     "geqql": {"symbol": "⪌", "types": ["rel"]},
     "leqqg": {"symbol": "⪋", "types": ["rel"]},
-    "ggt": {"symbol": "≫", "types": ["rel"]},
-    "lls": {"symbol": "≪", "types": ["rel"]},
-    "llseq": {"symbol": "⪣", "types": ["rel"]},
-    "varggt": {"symbol": "⪢", "types": ["rel"]},
-    "varlls": {"symbol": "⪡", "types": ["rel"]},
-    "gggt": {"symbol": "⋙", "types": ["rel"]},
-    "llls": {"symbol": "⋘", "types": ["rel"]},
-    "vargggt": {"symbol": "⫸", "types": ["rel"]},
-    "varllls": {"symbol": "⫷", "types": ["rel"]},
-    "succ": {"symbol": "≻", "types": ["rel"]}, "nsucc": {"symbol": "⊁", "types": ["rel"]},
-    "prec": {"symbol": "≺", "types": ["rel"]}, "nprec": {"symbol": "⊀", "types": ["rel"]},
-    "succeq": {"symbol": "⪰", "types": ["rel"]}, "succneq": {"symbol": "⪲", "types": ["rel"]},
-    "preceq": {"symbol": "⪯", "types": ["rel"]}, "precneq": {"symbol": "⪱", "types": ["rel"]},
-    "succeqq": {"symbol": "⪴", "types": ["rel"]}, "succneqq": {"symbol": "⪶", "types": ["rel"]},
-    "preceqq": {"symbol": "⪳", "types": ["rel"]}, "precneqq": {"symbol": "⪵", "types": ["rel"]},
-    "succsim": {"symbol": "≿", "types": ["rel"]}, "succnsim": {"symbol": "⋩", "types": ["rel"]},
-    "precsim": {"symbol": "≾", "types": ["rel"]}, "precnsim": {"symbol": "⋨", "types": ["rel"]},
-    "succapprox": {"symbol": "⪸", "types": ["rel"]}, "succnapprox": {"symbol": "⪺", "types": ["rel"]},
-    "precapprox": {"symbol": "⪷", "types": ["rel"]}, "precnapprox": {"symbol": "⪹", "types": ["rel"]},
-    "ssucc": {"symbol": "⪼", "types": ["rel"]},
-    "pprec": {"symbol": "⪻", "types": ["rel"]},
+    "xgt": {"symbol": "≫", "types": ["rel"]}, "ggt": {"symbol": "≫", "types": ["rel"]},
+    "xls": {"symbol": "≪", "types": ["rel"]}, "lls": {"symbol": "≪", "types": ["rel"]},
+    "xlseq": {"symbol": "⪣", "types": ["rel"]}, "llseq": {"symbol": "⪣", "types": ["rel"]},
+    "varxgt": {"symbol": "⪢", "types": ["rel"]}, "varggt": {"symbol": "⪢", "types": ["rel"]},
+    "varxls": {"symbol": "⪡", "types": ["rel"]}, "varlls": {"symbol": "⪡", "types": ["rel"]},
+    "xxgt": {"symbol": "⋙", "types": ["rel"]}, "gggt": {"symbol": "⋙", "types": ["rel"]},
+    "xxls": {"symbol": "⋘", "types": ["rel"]}, "llls": {"symbol": "⋘", "types": ["rel"]},
+    "varxxgt": {"symbol": "⫸", "types": ["rel"]}, "vargggt": {"symbol": "⫸", "types": ["rel"]},
+    "varxxls": {"symbol": "⫷", "types": ["rel"]}, "varllls": {"symbol": "⫷", "types": ["rel"]},
+    "succ": {"symbol": "≻", "types": ["rel"]},
+    "nsucc": {"symbol": "⊁", "types": ["rel"]},
+    "prec": {"symbol": "≺", "types": ["rel"]},
+    "nprec": {"symbol": "⊀", "types": ["rel"]},
+    "succeq": {"symbol": "⪰", "types": ["rel"]},
+    "succneq": {"symbol": "⪲", "types": ["rel"]},
+    "preceq": {"symbol": "⪯", "types": ["rel"]},
+    "precneq": {"symbol": "⪱", "types": ["rel"]},
+    "succeqq": {"symbol": "⪴", "types": ["rel"]},
+    "succneqq": {"symbol": "⪶", "types": ["rel"]},
+    "preceqq": {"symbol": "⪳", "types": ["rel"]},
+    "precneqq": {"symbol": "⪵", "types": ["rel"]},
+    "succsim": {"symbol": "≿", "types": ["rel"]},
+    "succnsim": {"symbol": "⋩", "types": ["rel"]},
+    "precsim": {"symbol": "≾", "types": ["rel"]},
+    "precnsim": {"symbol": "⋨", "types": ["rel"]},
+    "succapprox": {"symbol": "⪸", "types": ["rel"]},
+    "succnapprox": {"symbol": "⪺", "types": ["rel"]},
+    "precapprox": {"symbol": "⪷", "types": ["rel"]},
+    "precnapprox": {"symbol": "⪹", "types": ["rel"]},
+    "xsucc": {"symbol": "⪼", "types": ["rel"]}, "ssucc": {"symbol": "⪼", "types": ["rel"]},
+    "xprec": {"symbol": "⪻", "types": ["rel"]}, "pprec": {"symbol": "⪻", "types": ["rel"]},
     "succrel": {"symbol": "⊱", "types": ["rel"]},
     "precrel": {"symbol": "⊰", "types": ["rel"]},
-    "in": {"symbol": "∈", "types": ["rel"]}, "nin": {"symbol": "∉", "types": ["rel"]},
-    "ni": {"symbol": "∋", "types": ["rel"]}, "nni": {"symbol": "∌", "types": ["rel"]},
+    "in": {"symbol": "∈", "types": ["rel"]},
+    "nin": {"symbol": "∉", "types": ["rel"]},
+    "ni": {"symbol": "∋", "types": ["rel"]},
+    "nni": {"symbol": "∌", "types": ["rel"]},
     "ineq": {"symbol": "⋸", "types": ["rel"]},
     "disin": {"symbol": "⋲", "types": ["rel"]},
     "smt": {"symbol": "⪪", "types": ["rel"]},
     "lat": {"symbol": "⪫", "types": ["rel"]},
     "smteq": {"symbol": "⪬", "types": ["rel"]},
     "lateq": {"symbol": "⪭", "types": ["rel"]},
-    "supset": {"symbol": "⊃", "types": ["rel"]}, "nsupset": {"symbol": "⊃⃒", "types": ["rel"]},
-    "subset": {"symbol": "⊂", "types": ["rel"]}, "nsubset": {"symbol": "⊂⃒", "types": ["rel"]},
-    "supseteq": {"symbol": "⊇", "types": ["rel"]}, "nsupseteq": {"symbol": "⊉", "types": ["rel"]}, "supsetneq": {"symbol": "⊋", "types": ["rel"]}, 
-    "subseteq": {"symbol": "⊆", "types": ["rel"]}, "nsubseteq": {"symbol": "⊈", "types": ["rel"]}, "subsetneq": {"symbol": "⊊", "types": ["rel"]},
-    "supseteqq": {"symbol": "⫆", "types": ["rel"]}, "supsetneqq": {"symbol": "⫌", "types": ["rel"]}, 
-    "subseteqq": {"symbol": "⫅", "types": ["rel"]}, "subsetneqq": {"symbol": "⫋", "types": ["rel"]},
+    "supset": {"symbol": "⊃", "types": ["rel"]},
+    "nsupset": {"symbol": "⊃⃒", "types": ["rel"]},
+    "subset": {"symbol": "⊂", "types": ["rel"]},
+    "nsubset": {"symbol": "⊂⃒", "types": ["rel"]},
+    "supseteq": {"symbol": "⊇", "types": ["rel"]},
+    "nsupseteq": {"symbol": "⊉", "types": ["rel"]},
+    "supsetneq": {"symbol": "⊋", "types": ["rel"]},
+    "subseteq": {"symbol": "⊆", "types": ["rel"]},
+    "nsubseteq": {"symbol": "⊈", "types": ["rel"]},
+    "subsetneq": {"symbol": "⊊", "types": ["rel"]},
+    "supseteqq": {"symbol": "⫆", "types": ["rel"]},
+    "supsetneqq": {"symbol": "⫌", "types": ["rel"]},
+    "subseteqq": {"symbol": "⫅", "types": ["rel"]},
+    "subsetneqq": {"symbol": "⫋", "types": ["rel"]},
     "supsetsim": {"symbol": "⫈", "types": ["rel"]},
     "subsetsim": {"symbol": "⫇", "types": ["rel"]},
     "supsetapprox": {"symbol": "⫊", "types": ["rel"]},
     "subsetapprox": {"symbol": "⫉", "types": ["rel"]},
-    "ssupset": {"symbol": "⋑", "types": ["rel"]},
-    "ssubset": {"symbol": "⋐", "types": ["rel"]},
-    "sqsupset": {"symbol": "⊐", "types": ["rel"]}, "nsqsupset": {"symbol": "⊐̸", "types": ["rel"]},
-    "sqsubset": {"symbol": "⊏", "types": ["rel"]}, "nsqsubset": {"symbol": "⊏̸", "types": ["rel"]},
-    "sqsupseteq": {"symbol": "⊒", "types": ["rel"]}, "nsqsupseteq": {"symbol": "⋣", "types": ["rel"]}, "sqsupsetneq": {"symbol": "⋥", "types": ["rel"]},
-    "sqsubseteq": {"symbol": "⊑", "types": ["rel"]}, "nsqsubseteq": {"symbol": "⋢", "types": ["rel"]}, "sqsubsetneq": {"symbol": "⋤", "types": ["rel"]},
-    "rhd": {"symbol": "⊳", "types": ["rel"]}, "nrhd": {"symbol": "⋫", "types": ["rel"]},
-    "lhd": {"symbol": "⊲", "types": ["rel"]}, "nlhd": {"symbol": "⋪", "types": ["rel"]},
-    "rhdeq": {"symbol": "⊵", "types": ["rel"]}, "nrhdeq": {"symbol": "⋭", "types": ["rel"]},
-    "lhdeq": {"symbol": "⊴", "types": ["rel"]}, "nlhdeq": {"symbol": "⋬", "types": ["rel"]},
+    "xsupset": {"symbol": "⋑", "types": ["rel"]}, "ssupset": {"symbol": "⋑", "types": ["rel"]},
+    "xsubset": {"symbol": "⋐", "types": ["rel"]}, "ssubset": {"symbol": "⋐", "types": ["rel"]},
+    "sqsupset": {"symbol": "⊐", "types": ["rel"]},
+    "nsqsupset": {"symbol": "⊐̸", "types": ["rel"]},
+    "sqsubset": {"symbol": "⊏", "types": ["rel"]},
+    "nsqsubset": {"symbol": "⊏̸", "types": ["rel"]},
+    "sqsupseteq": {"symbol": "⊒", "types": ["rel"]},
+    "nsqsupseteq": {"symbol": "⋣", "types": ["rel"]},
+    "sqsupsetneq": {"symbol": "⋥", "types": ["rel"]},
+    "sqsubseteq": {"symbol": "⊑", "types": ["rel"]},
+    "nsqsubseteq": {"symbol": "⋢", "types": ["rel"]},
+    "sqsubsetneq": {"symbol": "⋤", "types": ["rel"]},
+    "rhd": {"symbol": "⊳", "types": ["rel"]},
+    "nrhd": {"symbol": "⋫", "types": ["rel"]},
+    "lhd": {"symbol": "⊲", "types": ["rel"]},
+    "nlhd": {"symbol": "⋪", "types": ["rel"]},
+    "rhdeq": {"symbol": "⊵", "types": ["rel"]},
+    "nrhdeq": {"symbol": "⋭", "types": ["rel"]},
+    "lhdeq": {"symbol": "⊴", "types": ["rel"]},
+    "nlhdeq": {"symbol": "⋬", "types": ["rel"]},
     "curverhd": {"symbol": "⪧", "types": ["rel"]},
     "curvelhd": {"symbol": "⪦", "types": ["rel"]},
     "barrhd": {"symbol": "⩥", "types": ["rel"]},
     "barlhd": {"symbol": "⩤", "types": ["rel"]},
-    "vdash": {"symbol": "⊢", "types": ["rel"]}, "nvdash": {"symbol": "⊬", "types": ["rel"]},
-    "vddash": {"symbol": "⊨", "types": ["rel"]}, "nvddash": {"symbol": "⊭", "types": ["rel"]},
-    "vvdash": {"symbol": "⊩", "types": ["rel"]}, "nvvdash": {"symbol": "⊮", "types": ["rel"]},
+    "vdash": {"symbol": "⊢", "types": ["rel"]},
+    "nvdash": {"symbol": "⊬", "types": ["rel"]},
+    "vxdash": {"symbol": "⊨", "types": ["rel"]}, "vddash": {"symbol": "⊨", "types": ["rel"]},
+    "nvxdash": {"symbol": "⊭", "types": ["rel"]}, "nvddash": {"symbol": "⊭", "types": ["rel"]},
+    "xvdash": {"symbol": "⊩", "types": ["rel"]}, "vvdash": {"symbol": "⊩", "types": ["rel"]},
+    "nxvdash": {"symbol": "⊮", "types": ["rel"]}, "nvvdash": {"symbol": "⊮", "types": ["rel"]},
     "dashv": {"symbol": "⊣", "types": ["rel"]},
-    "dashvv": {"symbol": "⫣", "types": ["rel"]},
-    "ddashv": {"symbol": "⫤", "types": ["rel"]},
-    "mid": {"symbol": "∣", "types": ["rel"]}, "nmid": {"symbol": "∤", "types": ["rel"]},
-    "parallel": {"symbol": "∥", "types": ["rel"]}, "nparallel": {"symbol": "∦", "types": ["rel"]},
+    "dashxv": {"symbol": "⫣", "types": ["rel"]}, "dashvv": {"symbol": "⫣", "types": ["rel"]},
+    "xdashv": {"symbol": "⫤", "types": ["rel"]}, "ddashv": {"symbol": "⫤", "types": ["rel"]},
+    "mid": {"symbol": "∣", "types": ["rel"]},
+    "nmid": {"symbol": "∤", "types": ["rel"]},
+    "parallel": {"symbol": "∥", "types": ["rel"]},
+    "nparallel": {"symbol": "∦", "types": ["rel"]},
     "between": {"symbol": "≬", "types": ["rel"]},
     "perp": {"symbol": "⟂", "types": ["rel"]},
     "propto": {"symbol": "∝", "types": ["rel"]},
@@ -263,25 +321,25 @@
     "vvertlrarr": {"symbol": "⇼", "types": ["rel"]}, "bvvertlrarr": {"symbol": "⇼", "types": ["bin"]},
     "circlerarr": {"symbol": "↻", "types": ["rel"]},
     "circlelarr": {"symbol": "↺", "types": ["rel"]},
-    "raarr": {"symbol": "⇒", "types": ["rel"]}, "braarr": {"symbol": "⇒", "types": ["bin"]},
-    "laarr": {"symbol": "⇐", "types": ["rel"]}, "blaarr": {"symbol": "⇐", "types": ["bin"]},
-    "lraarr": {"symbol": "⇔", "types": ["rel"]}, "blraarr": {"symbol": "⇔", "types": ["bin"]},
-    "rmmap": {"symbol": "⤇", "types": ["rel"]}, "brmmap": {"symbol": "⤇", "types": ["bin"]},
-    "lmmap": {"symbol": "⤆", "types": ["rel"]}, "blmmap": {"symbol": "⤆", "types": ["bin"]},
-    "vertraarr": {"symbol": "⤃", "types": ["rel"]}, "bvertraarr": {"symbol": "⤃", "types": ["bin"]},
-    "vertlaarr": {"symbol": "⤂", "types": ["rel"]}, "bvertlaarr": {"symbol": "⤂", "types": ["bin"]},
-    "vertlraarr": {"symbol": "⤄", "types": ["rel"]}, "bvertlraarr": {"symbol": "⤄", "types": ["bin"]},
-    "longraarr": {"symbol": "⟹", "types": ["rel"]},
-    "longlaarr": {"symbol": "⟸", "types": ["rel"]},
-    "longlraarr": {"symbol": "⟺", "types": ["rel"]},
-    "raaarr": {"symbol": "⇛", "types": ["rel"]}, "braaarr": {"symbol": "⇛", "types": ["bin"]},
-    "laaarr": {"symbol": "⇚", "types": ["rel"]}, "blaaarr": {"symbol": "⇚", "types": ["bin"]},
+    "rxarr": {"symbol": "⇒", "types": ["rel"]}, "raarr": {"symbol": "⇒", "types": ["rel"]}, "brxarr": {"symbol": "⇒", "types": ["bin"]}, "braarr": {"symbol": "⇒", "types": ["bin"]},
+    "lxarr": {"symbol": "⇐", "types": ["rel"]}, "laarr": {"symbol": "⇐", "types": ["rel"]}, "blxarr": {"symbol": "⇐", "types": ["bin"]}, "blaarr": {"symbol": "⇐", "types": ["bin"]},
+    "lrxarr": {"symbol": "⇔", "types": ["rel"]}, "lraarr": {"symbol": "⇔", "types": ["rel"]}, "blrxarr": {"symbol": "⇔", "types": ["bin"]}, "blraarr": {"symbol": "⇔", "types": ["bin"]},
+    "rxmap": {"symbol": "⤇", "types": ["rel"]}, "rmmap": {"symbol": "⤇", "types": ["rel"]}, "brxmap": {"symbol": "⤇", "types": ["bin"]}, "brmmap": {"symbol": "⤇", "types": ["bin"]},
+    "lxmap": {"symbol": "⤆", "types": ["rel"]}, "lmmap": {"symbol": "⤆", "types": ["rel"]}, "blxmap": {"symbol": "⤆", "types": ["bin"]}, "blmmap": {"symbol": "⤆", "types": ["bin"]},
+    "vertrxarr": {"symbol": "⤃", "types": ["rel"]}, "vertraarr": {"symbol": "⤃", "types": ["rel"]}, "bvertrxarr": {"symbol": "⤃", "types": ["bin"]}, "bvertraarr": {"symbol": "⤃", "types": ["bin"]},
+    "vertlxarr": {"symbol": "⤂", "types": ["rel"]}, "vertlaarr": {"symbol": "⤂", "types": ["rel"]}, "bvertlxarr": {"symbol": "⤂", "types": ["bin"]}, "bvertlaarr": {"symbol": "⤂", "types": ["bin"]},
+    "vertlrxarr": {"symbol": "⤄", "types": ["rel"]}, "vertlraarr": {"symbol": "⤄", "types": ["rel"]}, "bvertlrxarr": {"symbol": "⤄", "types": ["bin"]}, "bvertlraarr": {"symbol": "⤄", "types": ["bin"]},
+    "longrxarr": {"symbol": "⟹", "types": ["rel"]}, "longraarr": {"symbol": "⟹", "types": ["rel"]},
+    "longlxarr": {"symbol": "⟸", "types": ["rel"]}, "longlaarr": {"symbol": "⟸", "types": ["rel"]},
+    "longlrxarr": {"symbol": "⟺", "types": ["rel"]}, "longlraarr": {"symbol": "⟺", "types": ["rel"]},
+    "rxxarr": {"symbol": "⇛", "types": ["rel"]}, "raaarr": {"symbol": "⇛", "types": ["rel"]}, "brxxarr": {"symbol": "⇛", "types": ["bin"]}, "braaarr": {"symbol": "⇛", "types": ["bin"]},
+    "lxxarr": {"symbol": "⇚", "types": ["rel"]}, "laaarr": {"symbol": "⇚", "types": ["rel"]}, "blxxarr": {"symbol": "⇚", "types": ["bin"]}, "blaaarr": {"symbol": "⇚", "types": ["bin"]},
     "uarr": {"symbol": "↑", "types": ["rel"]}, "buarr": {"symbol": "↑", "types": ["bin"]},
     "darr": {"symbol": "↓", "types": ["rel"]}, "bdarr": {"symbol": "↓", "types": ["bin"]},
     "udarr": {"symbol": "↕", "types": ["rel"]}, "budarr": {"symbol": "↕", "types": ["bin"]},
-    "uaarr": {"symbol": "⇑", "types": ["rel"]}, "buaarr": {"symbol": "⇑", "types": ["bin"]},
-    "daarr": {"symbol": "⇓", "types": ["rel"]}, "bdaarr": {"symbol": "⇓", "types": ["bin"]},
-    "udaarr": {"symbol": "⇕", "types": ["rel"]}, "budaarr": {"symbol": "⇕", "types": ["bin"]},
+    "uxarr": {"symbol": "⇑", "types": ["rel"]},"uaarr": {"symbol": "⇑", "types": ["rel"]}, "buxarr": {"symbol": "⇑", "types": ["bin"]}, "buaarr": {"symbol": "⇑", "types": ["bin"]},
+    "dxarr": {"symbol": "⇓", "types": ["rel"]},"daarr": {"symbol": "⇓", "types": ["rel"]}, "bdxarr": {"symbol": "⇓", "types": ["bin"]}, "bdaarr": {"symbol": "⇓", "types": ["bin"]},
+    "udxarr": {"symbol": "⇕", "types": ["rel"]}, "udaarr": {"symbol": "⇕", "types": ["rel"]}, "budxarr": {"symbol": "⇕", "types": ["bin"]}, "budaarr": {"symbol": "⇕", "types": ["bin"]},
     "scand": {"symbol": "AND", "types": ["sbin", "sml"]},
     "scor": {"symbol": "OR", "types": ["sbin", "sml"]},
     "scimplies": {"symbol": "IMPLIES", "types": ["sbin", "sml"]},
@@ -297,12 +355,12 @@
     "ques": {"symbol": "?", "types": ["ord", "txt"]},
     "hyphen": {"symbol": "-", "types": ["ord", "txt"]},
     "pr": {"symbol": "\uDB80\uDF98", "types": ["ord"]},
-    "ppr": {"symbol": "\uDB80\uDF99", "types": ["ord"]},
-    "pppr": {"symbol": "\uDB80\uDF9A", "types": ["ord"]},
-    "ppppr": {"symbol": "\uDB80\uDF9B", "types": ["ord"]},
+    "xpr": {"symbol": "\uDB80\uDF99", "types": ["ord"]}, "ppr": {"symbol": "\uDB80\uDF99", "types": ["ord"]},
+    "xxpr": {"symbol": "\uDB80\uDF9A", "types": ["ord"]}, "pppr": {"symbol": "\uDB80\uDF9A", "types": ["ord"]},
+    "xxxpr": {"symbol": "\uDB80\uDF9B", "types": ["ord"]}, "ppppr": {"symbol": "\uDB80\uDF9B", "types": ["ord"]},
     "bpr": {"symbol": "\uDB80\uDF9C", "types": ["ord"]},
-    "bppr": {"symbol": "\uDB80\uDF9D", "types": ["ord"]},
-    "bpppr": {"symbol": "\uDB80\uDF9E", "types": ["ord"]},
+    "bxpr": {"symbol": "\uDB80\uDF9D", "types": ["ord"]}, "bppr": {"symbol": "\uDB80\uDF9D", "types": ["ord"]},
+    "bxxpr": {"symbol": "\uDB80\uDF9E", "types": ["ord"]}, "bpppr": {"symbol": "\uDB80\uDF9E", "types": ["ord"]},
     "not": {"symbol": "\u0338", "types": ["not"]},
     "partial": {"symbol": "∂", "types": ["ord", "txt"]},
     "nabla": {"symbol": "∇", "types": ["ord"]},
@@ -322,7 +380,7 @@
     "quaver": {"symbol": "♪", "types": ["ord"]},
     "linkquaver": {"symbol": "♫", "types": ["ord"]},
     "dagger": {"symbol": "†", "types": ["ord", "txt"]},
-    "ddagger": {"symbol": "‡", "types": ["ord", "txt"]},
+    "xdagger": {"symbol": "‡", "types": ["ord", "txt"]}, "ddagger": {"symbol": "‡", "types": ["ord", "txt"]},
     "bspade": {"symbol": "♠", "types": ["ord"]},
     "bheart": {"symbol": "♥", "types": ["ord"]},
     "bdiamond": {"symbol": "♦", "types": ["ord"]},
@@ -335,11 +393,12 @@
     "backslash": {"symbol": "\\","types":  ["ord"]},
     "top": {"symbol": "⊤", "types": ["ord"]},
     "bot": {"symbol": "⊥", "types": ["ord"]},
-    "ttop": {"symbol": "⫪", "types": ["ord"]},
-    "bbot": {"symbol": "⫫", "types": ["ord"]},
+    "xtop": {"symbol": "⫪", "types": ["ord"]}, "ttop": {"symbol": "⫪", "types": ["ord"]},
+    "xbot": {"symbol": "⫫", "types": ["ord"]}, "bbot": {"symbol": "⫫", "types": ["ord"]},
     "neg": {"symbol": "¬", "types": ["ord"]},
     "forall": {"symbol": "∀", "types": ["ord"]},
-    "exists": {"symbol": "∃", "types": ["ord"]}, "nexists": {"symbol": "∄", "types": ["ord"]},
+    "exists": {"symbol": "∃", "types": ["ord"]},
+    "nexists": {"symbol": "∄", "types": ["ord"]},
     "aleph": {"symbol": "ℵ", "types": ["ord"]},
     "beth": {"symbol": "ℶ", "types": ["ord"]},
     "ldots": {"symbol": "…", "types": ["ord"]},
@@ -347,19 +406,32 @@
     "vdots": {"symbol": "⋮", "types": ["ord"]},
     "ddots": {"symbol": "⋱", "types": ["ord"]},
     "udots": {"symbol": "⋰", "types": ["ord"]},
-    "lparen": {"symbol": "(", "types": ["lpar"]}, "rparen": {"symbol": ")", "types": ["rpar"]},
-    "lpparen": {"symbol": "⦅", "types": ["lpar"]}, "rpparen": {"symbol": "⦆", "types": ["rpar"]},
-    "lbracket": {"symbol": "[", "types": ["lpar"]}, "rbracket": {"symbol": "]", "types": ["rpar"]},
-    "lbbracket": {"symbol": "⟦", "types": ["lpar"]}, "rbbracket": {"symbol": "⟧", "types": ["rpar"]},
-    "lbrace": {"symbol": "{", "types": ["lpar"]}, "rbrace": {"symbol": "}", "types": ["rpar"]},
-    "lbbrace": {"symbol": "⦃", "types": ["lpar"]}, "rbbrace": {"symbol": "⦄", "types": ["rpar"]},
-    "lvert": {"symbol": "|", "types": ["lpar"]}, "rvert": {"symbol": "|", "types": ["rpar"]},
-    "lvvert": {"symbol": "‖", "types": ["lpar"]}, "rvvert": {"symbol": "‖", "types": ["rpar"]},
-    "lfloor": {"symbol": "⌊", "types": ["lpar"]}, "rfloor": {"symbol": "⌋", "types": ["rpar"]},
-    "lceil": {"symbol": "⌈", "types": ["lpar"]}, "rceil": {"symbol": "⌉", "types": ["rpar"]},
-    "langle": {"symbol": "⟨", "types": ["lpar"]}, "rangle": {"symbol": "⟩", "types": ["rpar"]},
-    "laangle": {"symbol": "⟪", "types": ["lpar"]}, "raangle": {"symbol": "⟫", "types": ["rpar"]},
-    "ltort": {"symbol": "❲", "types": ["lpar"]}, "rtort": {"symbol": "❳", "types": ["rpar"]}
+    "lparen": {"symbol": "(", "types": ["lpar"]},
+    "rparen": {"symbol": ")", "types": ["rpar"]},
+    "lxparen": {"symbol": "⦅", "types": ["lpar"]}, "lpparen": {"symbol": "⦅", "types": ["lpar"]},
+    "rxparen": {"symbol": "⦆", "types": ["rpar"]}, "rpparen": {"symbol": "⦆", "types": ["rpar"]}, 
+    "lbracket": {"symbol": "[", "types": ["lpar"]},
+    "rbracket": {"symbol": "]", "types": ["rpar"]},
+    "lxbracket": {"symbol": "⟦", "types": ["lpar"]}, "lbbracket": {"symbol": "⟦", "types": ["lpar"]},
+    "rxbracket": {"symbol": "⟧", "types": ["rpar"]}, "rbbracket": {"symbol": "⟧", "types": ["rpar"]},
+    "lbrace": {"symbol": "{", "types": ["lpar"]},
+    "rbrace": {"symbol": "}", "types": ["rpar"]},
+    "lxbrace": {"symbol": "⦃", "types": ["lpar"]}, "lbbrace": {"symbol": "⦃", "types": ["lpar"]},
+    "rxbrace": {"symbol": "⦄", "types": ["rpar"]}, "rbbrace": {"symbol": "⦄", "types": ["rpar"]},
+    "lvert": {"symbol": "|", "types": ["lpar"]},
+    "rvert": {"symbol": "|", "types": ["rpar"]},
+    "lxvert": {"symbol": "‖", "types": ["lpar"]}, "lvvert": {"symbol": "‖", "types": ["lpar"]},
+    "rxvert": {"symbol": "‖", "types": ["rpar"]}, "rvvert": {"symbol": "‖", "types": ["rpar"]},
+    "lfloor": {"symbol": "⌊", "types": ["lpar"]},
+    "rfloor": {"symbol": "⌋", "types": ["rpar"]},
+    "lceil": {"symbol": "⌈", "types": ["lpar"]},
+    "rceil": {"symbol": "⌉", "types": ["rpar"]},
+    "langle": {"symbol": "⟨", "types": ["lpar"]},
+    "rangle": {"symbol": "⟩", "types": ["rpar"]},
+    "lxangle": {"symbol": "⟪", "types": ["lpar"]}, "laangle": {"symbol": "⟪", "types": ["lpar"]},
+    "rxangle": {"symbol": "⟫", "types": ["rpar"]}, "raangle": {"symbol": "⟫", "types": ["rpar"]},
+    "ltort": {"symbol": "❲", "types": ["lpar"]},
+    "rtort": {"symbol": "❳", "types": ["rpar"]}
   },
   "radical": {
     "0": "√", "1": "\uDB80\uDD1D", "2": "\uDB80\uDD1E", "3": "\uDB80\uDD1F",
@@ -367,12 +439,12 @@
   },
   "integral": {
     "int": {"inl": "∫", "lrg": "\uDB80\uDD35"},
-    "iint": {"inl": "∬", "lrg": "\uDB80\uDD3A"},
-    "iiint": {"inl": "∭", "lrg": "\uDB80\uDD3F"},
-    "iiiint": {"inl": "⨌", "lrg": "\uDB80\uDE24"},
+    "xint": {"inl": "∬", "lrg": "\uDB80\uDD3A"}, "iint": {"inl": "∬", "lrg": "\uDB80\uDD3A"},
+    "xxint": {"inl": "∭", "lrg": "\uDB80\uDD3F"}, "iiint": {"inl": "∭", "lrg": "\uDB80\uDD3F"},
+    "xxxint": {"inl": "⨌", "lrg": "\uDB80\uDE24"}, "iiiint": {"inl": "⨌", "lrg": "\uDB80\uDE24"},
     "oint": {"inl": "∮", "lrg": "\uDB80\uDD44"},
-    "oiint": {"inl": "∯", "lrg": "\uDB80\uDD49"},
-    "oiiint": {"inl": "∰", "lrg": "\uDB80\uDD4E"},
+    "oxint": {"inl": "∯", "lrg": "\uDB80\uDD49"}, "oiint": {"inl": "∯", "lrg": "\uDB80\uDD49"},
+    "oxxint": {"inl": "∰", "lrg": "\uDB80\uDD4E"}, "oiiint": {"inl": "∰", "lrg": "\uDB80\uDD4E"},
     "intclock": {"inl": "∱", "lrg": "\uDB80\uDD53"},
     "intanticlock": {"inl": "⨑", "lrg": "\uDB80\uDE3D"},
     "ointclock": {"inl": "∲", "lrg": "\uDB80\uDD58"},
@@ -408,6 +480,16 @@
         "start": "⎞", "bar":"⎟", "end": "⎠"
       }
     },
+    "xparen": {
+      "left": {
+        "0": "⦅",
+        "1": "\uDB80\uDE0A", "2": "\uDB80\uDE0B", "3": "\uDB80\uDE0C", "4": "\uDB80\uDE0D"
+      },
+      "right": {
+        "0": "⦆",
+        "1": "\uDB80\uDE0E", "2": "\uDB80\uDE0F", "3": "\uDB80\uDE10", "4": "\uDB80\uDE11"
+      }
+    },
     "pparen": {
       "left": {
         "0": "⦅",
@@ -432,6 +514,16 @@
         "start": "⎤", "bar": "⎥", "end": "⎦"
       }  
     },
+    "xbracket": {
+      "left": {
+        "0": "⟦",
+        "1": "\uDB80\uDDE8", "2": "\uDB80\uDDE9", "3": "\uDB80\uDDEA", "4": "\uDB80\uDDEB"
+      },
+      "right": {
+        "0": "⟧",
+        "1": "\uDB80\uDDEC", "2": "\uDB80\uDDED", "3": "\uDB80\uDDEE", "4": "\uDB80\uDDEF"
+      }  
+    },
     "bbracket": {
       "left": {
         "0": "⟦",
@@ -456,6 +548,16 @@
         "start": "⎫", "bar": "⎪", "middle": "⎬", "end": "⎭"
       }
     },
+    "xbrace": {
+      "left": {
+        "0": "⦃",
+        "1": "\uDB80\uDE02", "2": "\uDB80\uDE03", "3": "\uDB80\uDE04", "4": "\uDB80\uDE05"
+      },
+      "right": {
+        "0": "⦄",
+        "1": "\uDB80\uDE06", "2": "\uDB80\uDE07", "3": "\uDB80\uDE08", "4": "\uDB80\uDE09"
+      }
+    },
     "bbrace": {
       "left": {
         "0": "⦃",
@@ -476,6 +578,16 @@
         "bar": "|"
       }
     },
+    "xvert": {
+      "left": {
+        "0": "‖",
+        "bar": "‖"
+      },
+      "right": {
+        "0": "‖",
+        "bar": "‖"
+      }
+    },
     "vvert": {
       "left": {
         "0": "‖",
@@ -516,6 +628,16 @@
         "1": "\uDB80\uDDF4", "2": "\uDB80\uDDF5", "3": "\uDB80\uDDF6", "4": "\uDB80\uDDF7"
       }
     },
+    "xangle": {
+      "left": {
+        "0": "⟪",
+        "1": "\uDB80\uDDF8", "2": "\uDB80\uDDF9", "3": "\uDB80\uDDFA", "4": "\uDB80\uDDFB"
+      },
+      "right": {
+        "0": "⟫",
+        "1": "\uDB80\uDDFC", "2": "\uDB80\uDDFD", "3": "\uDB80\uDDFE", "4": "\uDB80\uDDFF"
+      }
+    },
     "aangle": {
       "left": {
         "0": "⟪",
@@ -552,9 +674,9 @@
     "vec": {"un": null, "ov": "\uDB81\uDD77"},
     "invvec": {"un": null, "ov": "\uDB81\uDD76"},
     "dot": {"un": null, "ov": "\uDB81\uDD07"},
-    "ddot": {"un": null, "ov": "\uDB81\uDD08"},
-    "dddot": {"un": null, "ov": "\uDB81\uDD7B"},
-    "ddddot": {"un": null, "ov": "\uDB81\uDD7C"},
+    "xdot": {"un": null, "ov": "\uDB81\uDD08"}, "ddot": {"un": null, "ov": "\uDB81\uDD08"},
+    "xxdot": {"un": null, "ov": "\uDB81\uDD7B"}, "dddot": {"un": null, "ov": "\uDB81\uDD7B"},
+    "xxxdot": {"un": null, "ov": "\uDB81\uDD7C"}, "ddddot": {"un": null, "ov": "\uDB81\uDD7C"},
     "barbelow": {"un": "\uDB81\uDD31", "ov": null},
     "tildebelow": {"un": "\uDB81\uDD30", "ov": null}
   },
@@ -698,7 +820,7 @@
     }
   },
   "space": {
-    "sfun": "afun", "sbin": "abin", "srel": "arel", "ssbin": "asbin", "ssrel": "asrel", "scas": "acas", "quad": "sgl", "qquad": "dbl"
+    "sfun": "afun", "sbin": "abin", "srel": "arel", "ssbin": "asbin", "ssrel": "asrel", "scas": "acas", "quad": "sgl", "xquad": "dbl", "qquad": "dbl"
   },
   "alternative": {
     "bb": {