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.

Input: Consider 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

Output: no


Input: Consider Input: Context: Add me to the list of people killed dead dead dead by "Too Many Cooks." @heyCasperKelly It was perfect. Thanks,— Penn Jillette (@pennjillette) November 9, 2014 Question: who wrote this tweet? Answer: penn jillette

Output: yes


Input: Consider Input: Context: 100s of #refugees stuck inside a train, nowhere to go. Hot, humid, tension rising. Unbearable conditions w/@arwaCNN cstreib (@cstreib) September 3, 2015 Question: how many refugees were stuck? Answer: 100s


Output: yes