diff --git a/src/sweet_v23Comments.ttl b/src/sweet_v23Comments.ttl
index 01ecb79..82bf3a4 100644
--- a/src/sweet_v23Comments.ttl
+++ b/src/sweet_v23Comments.ttl
@@ -581,7 +581,7 @@ sophatmoc:MountainWaveCloud rdfs:comment "A cloud that forms in the rising branc
 
 sophatmoc:Nimbostratus rdfs:comment "A principal cloud type (cloud genus), gray colored and often dark, rendered diffuse by more or less continuously falling rain, snow, sleet, etc., of the ordinary varieties and not accompanied by lightning, thunder, or hail."@en .
 
-sophatmoc:NoctilueentCloud rdfs:comment "(Rarely called luminous clouds.) Thin silvery-blue cirrus-like clouds frequently seen during summer twilight conditions at high latitudes (above 50?) in both hemispheres. They are the highest visible clouds in the atmosphere, occurring in the upper mesosphere at heights of about 85 km, and are closely related to the polar mesospheric clouds seen in satellite observations at similar altitudes over the summer polar cap. Noctilucent clouds are now known to consist of tiny ice particles with dimensions of the order of tens of nanometers, growing in the extreme cold of the summer polar mesopause region. The condensation nuclei on which the particles grow are thought to be either smoke and dust particles of meteoric origin or large hydrated positive ions. Strong upwelling of air from below, associated with a pole-to-pole meridional circulation in the upper mesosphere, is responsible for both the extreme cold and the upward flux of water vapor. Although water-vapor mixing ratios are very low (less than 10 parts per million by volume) in the region, the temperatures are also low enough to produce a high degree of supersaturation at times. Anomalously strong radar echoes from the region, known as polar summer mesospheric echoes, are also associated with the clouds. Compare nacreous clouds, polar stratospheric clouds."@en .
+sophatmoc:NoctilucentCloud rdfs:comment "(Rarely called luminous clouds.) Thin silvery-blue cirrus-like clouds frequently seen during summer twilight conditions at high latitudes (above 50?) in both hemispheres. They are the highest visible clouds in the atmosphere, occurring in the upper mesosphere at heights of about 85 km, and are closely related to the polar mesospheric clouds seen in satellite observations at similar altitudes over the summer polar cap. Noctilucent clouds are now known to consist of tiny ice particles with dimensions of the order of tens of nanometers, growing in the extreme cold of the summer polar mesopause region. The condensation nuclei on which the particles grow are thought to be either smoke and dust particles of meteoric origin or large hydrated positive ions. Strong upwelling of air from below, associated with a pole-to-pole meridional circulation in the upper mesosphere, is responsible for both the extreme cold and the upward flux of water vapor. Although water-vapor mixing ratios are very low (less than 10 parts per million by volume) in the region, the temperatures are also low enough to produce a high degree of supersaturation at times. Anomalously strong radar echoes from the region, known as polar summer mesospheric echoes, are also associated with the clouds. Compare nacreous clouds, polar stratospheric clouds."@en .
 
 sophatmoc:OrographicCloud rdfs:comment "Mountain clouds produced by orographic lifting of moist air to saturation."@en .
 
@@ -2333,4 +2333,4 @@ sosttc:LaNina rdfs:comment "The most common of several names given toa significa
 
 sostv:CentralDenseOvercast rdfs:comment "The region of dense cloud near the core of a tropical cyclone."@en .
 
-sostv:Sunny rdfs:comment " When the direct radiation is not blocked by clouds, it is experienced as sunshine, a combination of bright light and heat."@en .
\ No newline at end of file
+sostv:Sunny rdfs:comment " When the direct radiation is not blocked by clouds, it is experienced as sunshine, a combination of bright light and heat."@en .