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.

Example Input: concept: Christchurch  question:  what date did the earthquake in christchurch happen?
Example Output: ['2011 Christchurch earthquake']

Example Input: concept: Whitney Houston  question:  what killed whitney houston?
Example Output: ['Drowning', 'Coronary artery disease', 'Cocaine overdose']

Example Input: concept: Johnny Cash  question:  who was johnny cash's first wife?
Example Output:
Vivian Liberto