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 Input:
concept: Whitney Houston  question:  what killed whitney houston?

Ex Output:
['Drowning', 'Coronary artery disease', 'Cocaine overdose']


Ex Input:
concept: Maryville  question:  what time zone is maryville tn?

Ex Output:
['North American Eastern Time Zone']


Ex Input:
concept: Youtube  question:  who created youtube and when?

Ex Output:

Chad Hurley, Steve Chen, Jawed Karim