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 Q]: Context: InsideHoops.com NBA @InsideHoopsReggie Jackson returned to action for Detroit Pistons today, in a loss to Orlando Magic: , 2:24:08 AM Question: what detroit pistons player returned in a game against orlando? Answer: reggie jackson
[EX A]: yes

[EX Q]: Context: Jessica Cheung, 36, has been at Mong Kok since last night. She said the anti-occupy crowd began approaching at noon Wilfred Chan (@wilfredchan) October 3, 2014 Question: what crowd began apporaching at noon Answer: the anti occupy crowd
[EX A]: yes

[EX Q]: Context: I am shocked & incredibly saddened by the loss of my friend Bobby Welch. He was a special human being & all-time teammate. @athletics @mlb— Dennis Eckersley (@Eck43) June 10, 2014 Question: why is dennis eckersley shocked and saddened Answer: the loss of his friend
[EX A]:
yes