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".

Example Input: Tweet: well new leathers are a treat.bottoms may need breaking in a bit thou.now put lower back out and bike won't start.work by car 2morrow  Question: is it a negative tweet?
Example Output: yes

Example Input: Tweet: has feed everyone in the house but herself.. Not liking what's left... Eggs, yuck! That also means having to clean a pan after  Question: is it a positive tweet?
Example Output: no

Example Input: Tweet: cursing yet another cell phone FAIL. I am cell-less until Friday.  Question: is it a negative tweet?
Example Output:
yes