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: Stupid dundee busses! 8mins late!! And over priced! I miss edinburgh  #fb Question: is it a negative tweet?

Ex Output:
yes


Ex Input:
Tweet: i've been on a roll with blocking tonight! too bad i ran out of things that need blocking  and T-pins. Ironically.. Question: is it a positive tweet?

Ex Output:
no


Ex Input:
Tweet: @loganwhy  good luck, friend! Question: is it a negative tweet?

Ex Output:

yes