input: def sentiment_analysis(tweets):
      """Analyze the sentiment of given tweets and classify them as 'Positive' or 'Negative'.
      >>> sentiment_analysis(["I love this product!", "This is so disappointing.", "Great experience!"])
      ["Positive", "Negative", "Positive"]
      """
output:     sentiment_labels = []
      for tweet in tweets:
          if "love" in tweet or "great" in tweet:
              sentiment_labels.append("Positive")
          elif "disappointing" in tweet or "bad" in tweet:
              sentiment_labels.append("Negative")
          else:
              sentiment_labels.append("Positive")
      return sentiment_labels