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: omg, this is my 2nd twitter entry. i has a headache.  Question: is it a positive tweet?

Output: no


Input: Consider Input: Tweet: @Courageous_one i've been there .. a lot recently  hopefully you catch up soon ! Question: is it a positive tweet?


Output: no