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".

[Q]: Tweet: i could have been staying at the apartment of my cute sk8erboy friend one month from now. (in case my tenses sound wrong, they're not)   Question: is it a negative tweet?
[A]: yes


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


[Q]: Tweet: probably the first iPhone 3GS in Australia. [Link] its not mine.  Question: is it a negative tweet?
[A]:
yes