Update text_converter.py

Adding a similarity check to ensure that the result not only has the lowest distance from target band but is also highly similar to the input text.

text_converter.py

@@ -93,8 +93,9 @@ def generate_similar_sentence(input_text, min_reading_level, max_reading_level,
                 result_index = i
                 completed = True
                 break
-            elif (reading_level < min_reading_level and abs(reading_level - min_reading_level) < closeness) \
-                or (reading_level > max_reading_level and abs(reading_level - max_reading_level) < closeness):
+            elif ((reading_level < min_reading_level and abs(reading_level - min_reading_level) < closeness) \
+                or (reading_level > max_reading_level and abs(reading_level - max_reading_level) < closeness)) and \
+                result_index > -1 and similarity > generated_text_scores[result_index][0]:
                 closeness = abs(reading_level - min_reading_level) if reading_level < min_reading_level else abs(reading_level - max_reading_level)
                 result_index = i