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: watched Skins for about three hours, so now i can go to bed...goodnight twitter!  Question: is it a positive tweet?

Ex Output:
yes


Ex Input:
Tweet: Sorry. Can't help it  Question: is it a positive tweet?

Ex Output:
yes


Ex Input:
Tweet: Researching lots of b&amp;b's for an upcoming trip.  It seems like every single one of them has cats  I'm allergic to most cats.  Sigh. Question: is it a negative tweet?

Ex Output:

yes