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: HTC Hero is here (in europe   ) [Link] Question: is it a negative tweet?
[EX A]: yes

[EX Q]: Tweet: @GothicVampireQ i cant tell or it wouldnt be a secret anymore silly!  Question: is it a positive tweet?
[EX A]: yes

[EX Q]: Tweet: i dreamt i stole a bus to get the bags on it back to @dearoldhouse..ended up in less than desireable situation, still fun though  Question: is it a negative tweet?
[EX A]:
no