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: @UK_CAGE neocons can continue stifling the truth through their weaponised public bodies but the truth shall always prevail. Keep up the work— CoolnessOfHind (@CoolnessOfHind) March 6, 2015 Question: how do neocons stifle the truth? Answer: through weaponised public bodies.
Example Output: yes

Example Input: Context: Katy Perry's Halftime in a nutshell Travis Lattner (@TLatt7) February 2, 2015 Question: what is this twitter page currently discussing Answer: katy perry's halftime show
Example Output: yes

Example Input: Context: In India getting ready to sail with Nashwa tomorrow from Mumbai to Muscat. Have had amazing help from our driver. Hilary Lister (@HilaryLister) March 10, 2014 Question: who is the subject of her tweet? Answer: nelson mandela dying.
Example Output:
no