input: def classify_text_documents(text1: str, text2: str) -> str:
      """ Classify text documents into two classes: positive and negative.
      >>> classify_text_documents("This is a great movie!", "This movie was terrible")
      'negative'
      """
output:     if "great" in text1 or "great" in text2:
          return "positive"
      elif "terrible" in text1 or "terrible" in text2:
          return "negative"
      else:
          return "neutral"