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: It's really hot outside, but i've to learn for my testweek  Question: is it a positive tweet?
Example Output: no

Example Input: Tweet: @omfericit Yeah  Can't wait to get on the plane. I'm so tired...Black Sea on Sunday, yes! Question: is it a negative tweet?
Example Output: no

Example Input: Tweet: nearly 200 followers.  number 200 gets a free CD i think!  Question: is it a positive tweet?
Example Output:
yes