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: Our very weak and ineffective leader, Paul Ryan, had a bad conference call where his members went wild at his disloyalty.— Donald J. Trump (@realDonaldTrump) October 11, 2016 Question: who does donald trump think is an ineffective leader? Answer: paul ryan

Ex Output:
yes


Ex Input:
Context: #EbolaQandA My mom is flying into Love Field on Sat. Should she be concerned about catching Ebola?— Blackhorse (@RoscoeTheHorse) October 1, 2014 Question: what business was miss cleo in? Answer: phone psychic

Ex Output:
no


Ex Input:
Context: After a meeting that lasted nearly hour with Heat president Pat Riley, a source said that LeBron James now wants to talk to his family.— Marc J. Spears (@SpearsNBAYahoo) July 9, 2014 Question: who did lebron james have a meeting with? Answer: pat riley

Ex Output:

yes