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: 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?

Answer: no


Question: Tweet: @troika90 its awesome! kinda... because of the weather xD ^^ How's your day so far?  Any plans for today? Question: is it a positive tweet?

Answer: yes


Question: Tweet: Just spent Â£10 on cards (which I hate buying anyway) then left them in Mcdonalds, when I went back to get them they had gone. Not Happy  Question: is it a negative tweet?

Answer:
yes