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: A 20-year-old female has become the first swine flu fatality in San Diego County. (via @SanDiego6) - dang, only 20yo...  Question: is it a positive tweet?
Example Output: no

Example Input: Tweet: im just bored. and i am waiting to leave. so i can finally go to santa cruz.  :]  Question: is it a positive tweet?
Example Output: yes

Example Input: Tweet: Staying the night with my best friend friday night.. Gonna REALLY celebrate then, no driving for me!  Question: is it a negative tweet?
Example Output:
no