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: Officials retrace NYC Ebola patient's footseps, from subway rides to bowling alley @jasoncarrollcnn reports. @CNN — OutFrontCNN (@OutFrontCNN) October 24, 2014 Question: what did tim scott's grandfather do? Answer: picking cotton

no