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.

Context: STAY ACTIVE, STAY SHARP! Sebastien Foucan (@SebastienFoucan) November 8, 2013 Question: is the lab upstairs or downstairs? Answer: the lab is upstairs.
no