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: I'm so STUPID !! argh I wish it could change  Question: is it a negative tweet?

Ex Output:
yes


Ex Input:
Tweet: is having breakfast: oatmeal sprinkled w/cinnamon, nutmeg, &amp; a few drops of maple syrup w/apple wedges on the side, &amp; spring water. YUMMY  Question: is it a positive tweet?

Ex Output:
yes


Ex Input:
Tweet: just bought a Canon EOS 450D for a steal  Question: is it a positive tweet?

Ex Output:

yes