Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

[EX Q]: concept: London  question:  where to watch live opening ceremony in london?
[EX A]: ['2012 Summer Olympics']

[EX Q]: concept: Heisman Trophy  question:  who is the 2011 heisman trophy winner?
[EX A]: ['Robert Griffin III']

[EX Q]: concept: Iran  question:  when was the last time iran invaded another country?
[EX A]:
Iran–Iraq War