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: @kierondonoghue my grandfather used to buy me duck eggs as a kid all the time. They are v nice!  Question: is it a positive tweet?

Output: yes


Input: Consider Input: Tweet: so much for the mossy drink- mom and dad came home  but i feel like reading my book tonite anyways... so GoOdNiGhT ALL !! Question: is it a negative tweet?

Output: yes


Input: Consider Input: Tweet: @DougMeacham - Thanks! I'll check it out.  Question: is it a negative tweet?


Output: no