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".

[EX Q]: Tweet: I missed the bl***y bus!!!!!!!!    Question: is it a negative tweet?
[EX A]: yes

[EX Q]: Tweet: bummer  @kplawver  Today will probably be light on the twittering. The real world (well, the work world) requires all my attention today. Question: is it a positive tweet?
[EX A]: no

[EX Q]: Tweet: @niknkim Welcome back Nik we've missed you  - for a great architectural illustrator #followfriday @niknkim Question: is it a negative tweet?
[EX A]:
no