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: "Sailboat racing is like a rugby team playing chess in a F1 car" - Laurent Pagès, Team Brunel #VOR Volvo Ocean Race (@volvooceanrace) September 16, 2014 Question: what kind of car is the rugby team? Answer: f1

Ex Output:
yes


Ex Input:
Context: Ken Rosenthal @Ken_RosenthalSource: Hurdles remain in Phillips talks between #Braves and #Reds. BP must be cleared medically. Injured left hand near end of last season.2/12/2017, 4:50:26 AM Question: what did bp injure last season Answer: left hand

Ex Output:
yes


Ex Input:
Context: Ending sexual harassment in astro also requires 2-pronged approach. 1- stopping the perpetrator and 2- empowering the victims. Allies is #2— Astronomy Ally (@AstronomyAllies) October 21, 2015 Question: who will miss jerry lewis? Answer: dane cook

Ex Output:

no