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: My Twitter Mobile is back... but now my tweetdeck is dead  Stupid World! Question: is it a positive tweet?

Ex Output:
no


Ex Input:
Tweet: HAVING A GLASS OF WINE FEELIN REAL NICE RITE NOW ONE THING IS MISSING  Question: is it a negative tweet?

Ex Output:
yes


Ex Input:
Tweet: will watch the Wolverine movie later  Question: is it a negative tweet?

Ex Output:

no