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

Tweet: @BSGirlsEver yeahh i just read it...good boys, nick was all day here and howie responded question  I gotta go...gOod night! Question: is it a negative tweet?
no

Tweet: @syddesign at least you are there &amp; honestly i am  jealous.  I t is less stressful than being an exhibitor for sure! Question: is it a negative tweet?

no