input: Write a function to classify the sentiment of movie reviews using Natural Language Processing. The function should analyze the provided movie review and determine whether the sentiment is positive or negative. If the given review is positive, return 'The sentiment of the sentence is positive!', otherwise return 'The sentiment of the sentence is negative!'.
  
  assert classify_sentiment("The movie was terrible. It felt like it would never end!")=='The sentiment of the sentence is negative!'
  assert classify_sentiment("The movie was amazing and left me in awe!")=='The sentiment of the sentence is positive!'
  assert classify_sentiment("It was just okay.")=='The sentiment of the sentence is positive!'
  assert classify_sentiment("I hated every minute of it.")=='The sentiment of the sentence is negative!'
  assert classify_sentiment("The acting was superb!")=='The sentiment of the sentence is positive!'
output: def classify_sentiment(review):
      from textblob import TextBlob
      sentiment = TextBlob(review).sentiment.polarity
      if sentiment > 0:
          return 'The sentiment of the sentence is positive!'
      else:
          return 'The sentiment of the sentence is negative!'