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".

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

Example Input: Tweet: ~what a bore!!  Question: is it a positive tweet?
Example Output: no

Example Input: Tweet: Nice try @lfresh but I'm not the rookie anymore that you badly wounded two hours ago  Question: is it a positive tweet?
Example Output:
yes