Definition: 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: Context: NTSB Has secured outward-facing video from the SEPTA train in question and will be reviewing radio transmissions. #Amtrak— NTSB (@NTSB) May 15, 2015 Question: what will they be reviewing? Answer: radio transmissions

yes