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: @ Dr Vu, good luck on your book! You can do it!  Question: is it a positive tweet?

Output: yes


Input: Consider Input: Tweet: jealous of justin,seeing as he hungout with JJ REDICK last night at BLISS.boo  Question: is it a positive tweet?

Output: no


Input: Consider Input: Tweet: Wants somebody to cheer her up  Question: is it a negative tweet?


Output: yes