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".

Input: Consider Input: Tweet: @casgetta what's wrong?  Question: is it a negative tweet?

Output: yes


Input: Consider Input: Tweet: @aDeSe it certainly isn't &quot;only&quot; 26  I wanted to be 22 forever, but kya karoon - time is flying fast! Question: is it a positive tweet?

Output: no


Input: Consider Input: Tweet: @petraklimesova grrr i STILL haven't been there  Question: is it a negative tweet?


Output: yes