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: Our backpacks measure Nitrogen Dioxide, Ozone and other volatile compounds in the air as we fly. #PigeonAir Pigeon Air Patrol (@PigeonAir) March 14, 2016 Question: where she is speaking from? Answer: her heart

no