Update app.py

app.py

@@ -24,7 +24,7 @@ def sentence_similarity(sent1, sent2, stopwords):
     words1 = [word.lower() for word in words1 if word.isalnum()]
     words2 = [word.lower() for word in words2 if word.isalnum()]
 
-    all_words = list(set(words1 + words2)
+    all_words = list(set(words1 + words2))
 
     vector1 = [0] * len(all_words)
     vector2 = [0] * len(all_words)