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: All civilians have been evacuated from #LibertyIsland. Emergency personnel only. #NYPD BOMB SQUAD moving in. NYPD 1st Precinct (@NYPD1Pct) April 24, 2015 Question: who is on liberty island? Answer: bomb squad

yes