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 Input:
Tweet: @eileenalouise thanks! might have to hold off til my ext hard drive is returned as i don't think my 'puter has room for another update  Question: is it a negative tweet?

Ex Output:
yes


Ex Input:
Tweet: hay @jason_mraz i haven't buy your cd compilation because it's too expensive  but i want to hear that Question: is it a negative tweet?

Ex Output:
yes


Ex Input:
Tweet: Finished blogging. I wanna watch Dance! Subaru, The Hangover and Coraline. UGHHH.  Question: is it a negative tweet?

Ex Output:

yes