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 eBay purchase still hasn't arrived. I may have been scammed. The lengths I go to get my hands on an Android Vodafone HTC Magic  Question: is it a positive tweet?

SOLUTION: no

PROBLEM: Tweet: Hiiiiiiiiiiiiiiiiiiiii!!! Am a dancer Turin Italy ... See one of the videos ... [Link]   Question: is it a negative tweet?

SOLUTION: no

PROBLEM: Tweet: @SnowVsAsphalt I just checked the date, and I'll be back in Vegas by then  boooo! Question: is it a positive tweet?

SOLUTION:
no