fix mismatched

app.py

@@ -7,11 +7,8 @@ def get_mismatched_sentences(reference, hypothesis):
     """
     Get mismatched sentences between reference and hypothesis.
     """
-    reference_sentences = reference.split()
-    hypothesis_sentences = hypothesis.split()
-
     mismatched = []
-    for ref, hyp in zip(reference_sentences, hypothesis_sentences):
+    for ref, hyp in zip(reference, hypothesis):
         if ref != hyp:
             mismatched.append((ref, hyp))