input: from typing import List
  
  
  def sentiment_analysis(tweets: List[str]) -> List[str]:
      """Analyze the sentiment of each tweet and classify it as "Positive" or "Negative".
      >>> sentiment_analysis(["I love this product!", "I hate this movie"])
      ['Positive', 'Negative']
      >>> sentiment_analysis(["Great day", "Terrible service"])
      ['Positive', 'Negative']
      """
output:     positive_words = {"love", "great", "awesome", "happy", "excellent"}
      negative_words = {"hate", "terrible", "awful", "sad", "bad"}
      
      result = []
      for tweet in tweets:
          words = set(tweet.lower().split())
          if positive_words.intersection(words):
              result.append("Positive")
          elif negative_words.intersection(words):
              result.append("Negative")
          else:
              result.append("Neutral")
      
      return result