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.

Ex Input:
Context: @klustout make it quick. drop it in the tub. better for both of you... Bill Bishop (@niubi) September 24, 2013 Question: where were some victims from? Answer: council bluffs, iowa

Ex Output:
no

Ex Input:
Context: I'm not saying LJ to Cavs is done deal or I know 4 a fact; just my gut feeling based on many conversations I've had around this story... Chris Broussard (@Chris_Broussard) July 7, 2014 Question: what alert is at level severe? Answer: french toast

Ex Output:
no

Ex Input:
Context: While sheriff says site of #DisneyAlligator attack had "no swimming" signs, some ponds/lakes have gator warnings. Eliott C. McLaughlin (@EliottCNN) June 15, 2016 Question: what are they ready to start doing immediately? Answer: drafting

Ex Output:
no