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: why do humans need sleep?? seriously if life's too short why waste time by sleeping?? anyway yeah i need some sleep  boring boring boring Question: is it a positive tweet?

SOLUTION: no

PROBLEM: Tweet: i cant sleep  Question: is it a positive tweet?

SOLUTION: no

PROBLEM: Tweet: @twitterrific great app, i enjoy it very much but unfortunately blocking profiles does'nt work  Question: is it a negative tweet?

SOLUTION:
yes