TASK DEFINITION: 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".
PROBLEM: Tweet: My heart won't let me sleep... Been up all night.  Question: is it a negative tweet?

SOLUTION: yes

PROBLEM: Tweet: My Twitter Mobile is back... but now my tweetdeck is dead  Stupid World! Question: is it a positive tweet?

SOLUTION: no

PROBLEM: Tweet: my stomach hurtz  ... it feels like a fat man is sitting on it Question: is it a positive tweet?

SOLUTION:
no