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: Let's break this down: APC has limited funds. PDP has CBN. APC will be bankrupted by this postponement. Part of the plan. Please donate!— Editi Effiòng (@EditiEffiong) February 8, 2015 Question: who will be bankrupted by this postponement? Answer: apc

Ex Output:
yes


Ex Input:
Context: #RedCross preparing a boat loaded with tarpaulins, set to sail for Nui tomorrow #CyclonePam @Federation New Zealand RedCross (@NZRedCross) March 19, 2015 Question: what kind of products is the red cross taking to nui? Answer: tarpaulins

Ex Output:
yes


Ex Input:
Context: Last week at HBO HQ:“Fire melts ice, right?”“I dunno. Probably. Worth a shot."— Todd VanDerWerff (@tvoti) March 9, 2017 Question: what did they say was worth a shot? Answer: melting ice with fire

Ex Output:

yes