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: @kierondonoghue my grandfather used to buy me duck eggs as a kid all the time. They are v nice!  Question: is it a positive tweet?
Example Output: yes

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: @ermadea No problem. Good thanks! Bit tired. You? Indeed we did lol. Friends, Booze and getting lost at 1am. The only way ;)  Question: is it a negative tweet?
Example Output:
no