small addition of returning 0 when word is not found

src/main/java/edu/illinois/cs/cogcomp/wrapper/Wrapper.java

@@ -97,11 +97,17 @@ public class Wrapper {
             e.printStackTrace();
         }
 
+        boolean not_found = false;
         if (stringSplitA == null) {
             System.out.println(stringA + " is not in the embedding file. ");
+            not_found = true;
         }
         if (stringSplitB == null) {
             System.out.println(stringB + " is not in the embedding file. ");
+            not_found = true;
+        }
+        if (not_found) {
+            return 0.0;//equivalent to saying that there is no evidence for similarity (positive number) or disimilarity (negative number)
         }
 
         double[] embeddingA = new double[stringSplitA.length - 1];