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: It's time for me to say goodbye. Tomorrow, the unit on @ESA_Rosetta for communication with me will be switched off forever...— Philae Lander (@Philae2014) July 26, 2016 Question: who must come through? Answer: republican senators

no