TASK DEFINITION: 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.
PROBLEM: Context: I thought I was hallucinating just now when I saw a broomstick coming towards me but it was just Joseph O'Brien. That guy needs a sandwich.— Australia (@Australia_Horse) August 20, 2014 Question: what did @austrailia_horse hallucinate? Answer: a broomstick

SOLUTION: yes

PROBLEM: Context: Mirka and I are so incredibly happy to share that Leo and Lenny were born this evening! #TwinsAgain #Miracle— Roger Federer (@rogerfederer) May 6, 2014 Question: who is report the soldier is dead? Answer: official sources

SOLUTION: no

PROBLEM: Context: Estonia is of 5 NATO allies in Europe to meet its 2% def expenditures commitment. Fought, with no caveats, in NATO's sole Art. 5 op. in Afg.— toomas hendrik ilves (@IlvesToomas) July 21, 2016 Question: what city is trump worried about the "carnage" in? Answer: chicago

SOLUTION:
no