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".

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

Ex Output:
yes


Ex Input:
Tweet: I can't sleep  This always happens when I'm away from my own bed. Question: is it a positive tweet?

Ex Output:
no


Ex Input:
Tweet: Dentist and eye doctor today  Question: is it a negative tweet?

Ex Output:

yes