In this task, you are given a context tweet, a question and corresponding answer of given question. Your task is to classify given passage into two categories: (1) "yes" if the given context is useful in answering the question, and (2) "no" if the given context is not useful.

Ex Input:
Context: Boom, boom, BOOM! Katy Perry broke the halftime show record with 118.5 million viewers. The game had a record 114.4M Brian A. Hernandez (@BAHjournalist) February 2, 2015 Question: how many viewers did the halftime show have? Answer: 118.5 million.

Ex Output:
yes

Ex Input:
Context: CBS teases a Charlie Sheen return - and builds the episode around his character - and he doesn't. So lame. #TwoAndAHalfMenFinale Brian Cantor (@cantorpedia) February 20, 2015 Question: what did they build the episode around? Answer: his character

Ex Output:
yes

Ex Input:
Context: I didn't think Mike Epps playing with that kangaroo last night was funny at all. That kangaroo look miserable and ready to snap. P (@Pariss_Franceee) April 1, 2017 Question: how many possible opponents were there? Answer: 8

Ex Output:
no