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".

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

Tweet: Rather work with the materials  - [Link] Question: is it a negative tweet?
yes

Tweet: Dark Knight stiil good after the 5th time.  Question: is it a negative tweet?

no