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

Tweet: i love the smell of weat packs  hate this weather SIGH  Question: is it a positive tweet?
no

Tweet: @ddlovato: you girls are so pretty. i love your guys' dresses  Question: is it a negative tweet?

no