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.

Example Input: Context: This is exhilarating! Almost like climbing a mountain for the first time. Miriam Friedrich (@MiriFriedrich) April 6, 2015 Question: where is alan p. gross? Answer: washington
Example Output: no

Example Input: Context: The subject of our PSA is starting to get rape threats on the comments. Can you help by reporting them? Hollaback! (@iHollaback) October 28, 2014 Question: when will there be a chance to beat buzzy cohen on jeopardy? Answer: tomorrow.
Example Output: no

Example Input: Context: "I'm my opinion the firearm shown in the surveillance stills is a glock pistol" witness testifies @susancandiotti Lawrence Crook (@LawrenceCNN) March 11, 2015 Question: what kind of firearm is shown in the surveillance stills? Answer: glock pistol
Example Output:
yes