instruction:
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".
question:
Tweet: Never mind swine flu, looks like I might be in for a dose of chicken pox  Question: is it a negative tweet?
answer:
yes


question:
Tweet: The rain makes drivng to the office on a saturday even more dreary  Question: is it a negative tweet?
answer:
yes


question:
Tweet: just bought a Canon EOS 450D for a steal  Question: is it a negative tweet?
answer:

no