In this task, you are given a text from tweets and a boolean question whether this tweet has positive sentiment or negative sentiment. Your task is to generate answer "yes" when the tweet has that particular sentiment, otherwise generate answer "no".
--------
Question: Tweet: I think I'm in love with him...  Question: is it a negative tweet?

Answer: yes


Question: Tweet: My heart won't let me sleep... Been up all night.  Question: is it a negative tweet?

Answer: yes


Question: Tweet: @fionaloke Hahaha hi!  Is twitter is better than plurk?  Question: is it a positive tweet?

Answer:
yes