Update app.py

app.py

@@ -9,7 +9,7 @@ parrot = Parrot(model_tag="prithivida/parrot_paraphraser_on_T5", use_gpu=False)
 def paraphrase_text(input_text):
   para_phrases = parrot.augment(input_phrase=input_text, 
                                max_return_phrases = 3)
-  return para_phrases[0][0], para_phrases[1][0] if para_phrases[1][0] else '' , para_phrases[2][0] if para_phrases[2][0] else ''
+  return para_phrases[0][0], para_phrases[1][0] if len(para_phrases) > 1 else '' , para_phrases[2][0] if len(para_phrases) > 2 else ''
 
 examples = [["Begin your professional career by learning data science skills with Data Science Dojo, a globally recognized e-learning platform where we teach students how to learn data science, data analytics, machine learning, and more.", "45"], ["Hello, I am a paraphrasing tool. How can I help you?", "30"]]