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: Sigh. Because I'm still having to use the block button for hateful messages. #YesAllWomen Amber Naslund (@AmberCadabra) May 26, 2014 Question: what is amber using to stop hateful messages Answer: the block button

Ex Output:
yes

Ex Input:
Context: Crowd joins choir at #MikeBrown's funeral, singing & dancing to hymn, ""Every Praise." Eliott C. McLaughlin (@EliottCNN) August 25, 2014 Question: who's talking in the video? Answer: john kasich

Ex Output:
no

Ex Input:
Context: Women make men make the first move for everything A1 $AU$TIN (@austinhoodrich) March 3, 2016 Question: which move do women make men make? Answer: first

Ex Output:
yes