diff --git a/ArtificialAutism/src/main/java/FunctionLayer/StanfordParser/SentimentAnalyzerTest.java b/ArtificialAutism/src/main/java/FunctionLayer/StanfordParser/SentimentAnalyzerTest.java
index 8b0f28a9..6b254390 100644
--- a/ArtificialAutism/src/main/java/FunctionLayer/StanfordParser/SentimentAnalyzerTest.java
+++ b/ArtificialAutism/src/main/java/FunctionLayer/StanfordParser/SentimentAnalyzerTest.java
@@ -887,7 +887,7 @@ public class SentimentAnalyzerTest {
                             if (sentenceConstituencyParse2 != null && !sentenceConstituencyParse2.isEmpty()) {
                                 for (CoreLabel LBW : sentenceConstituencyParse1.taggedLabeledYield()) {
                                     for (CoreLabel LBW1 : sentenceConstituencyParse2.taggedLabeledYield()) {
-                                        if (LBW.lemma().equals(LBW1.lemma())) {
+                                        if (LBW.lemma() != null && LBW1.lemma() != null && LBW.lemma().equals(LBW1.lemma())) {
                                             boolean found = false;
                                             for (String str : filerTreeContent) {
                                                 if (str.equals(LBW.lemma())) {
@@ -895,7 +895,7 @@ public class SentimentAnalyzerTest {
                                                     break;
                                                 }
                                             }
-                                            if (!found) {
+                                            if (!found && LBW.lemma() != null) {
                                                 filerTreeContent.add(LBW.lemma());
                                                 runCount1++;
                                             }
@@ -2151,9 +2151,11 @@ public class SentimentAnalyzerTest {
         for (CoreLabel token : tokensSentiment) {
             Set<?> stopWords = StopAnalyzer.ENGLISH_STOP_WORDS_SET;
             Set<?> stopWordsCustom = StopwordAnnotator.getStopWordList(customStopWordList, true);
-            String lemma = token.lemma().toLowerCase();
-            if (stopWords.contains(lemma) || stopWordsCustom.contains(lemma)) {
-                arrs.add(lemma);
+            if (token.lemma() != null) {
+                String lemma = token.lemma().toLowerCase();
+                if (stopWords.contains(lemma) || stopWordsCustom.contains(lemma)) {
+                    arrs.add(lemma);
+                }
             }
         }
         return arrs;