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.

Example Input: Context: congrats to Gala Leon Garcia for becoming first female Spanish Davis cup captain today... hopefully first of many! Andy Murray (@andy_murray) September 22, 2014 Question: where do you go to install the @nasa_eyes app? Answer: eyes.nasa.gov/juno
Example Output: no

Example Input: Context: Cheers to @Letterman. A king, a king-maker, and probably the man most to blame for inflicting me on America. See you soon. Ricky Gervais (@rickygervais) April 3, 2014 Question: who sent michelle obama a letter? Answer: beyonce
Example Output: no

Example Input: Context: #Kallis made his Test debut v England in 1995 at Kingsmead. 44 100's and 292 wkts later also ends his illustrious Test career there Cricket South Africa (@OfficialCSA) December 25, 2013 Question: who made their debut v england in 1995 at kingsmead? Answer: kallis did
Example Output:
yes