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: Mmmm free sushi!!  complete happy camper!! and its endless! even better!! Question: is it a negative tweet?

Output: no


Input: Consider Input: Tweet: i can't stop gaining weight! i hate you chocolate but please don't break up with me  Question: is it a positive tweet?

Output: no


Input: Consider Input: Tweet: Looks like #8 won't happen till at least 2012  Question: is it a negative tweet?


Output: yes