diff --git a/src/main/Tuple.java b/src/main/Tuple.java
index e01513d..d705d5e 100644
--- a/src/main/Tuple.java
+++ b/src/main/Tuple.java
@@ -5,7 +5,7 @@
 public class Tuple implements Comparable<Tuple>{
 		public int id; //tuple id
 		public int slideID; //slide id
-		public double[] value;
+		public double[] value; //value
 		public ArrayList<Integer> cellIdx;
 		public boolean outlier;
 		public double outlierScore;