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: Virgin America  question:  what type of aircraft does virgin america use?
Example Output: ['Airbus A319', 'Airbus A320']

Example Input: concept: Bilbo Baggins  question:  who is playing bilbo in the hobbit movie?
Example Output: ['Norman Bird', 'Martin Freeman', 'Ian Holm']

Example Input: concept: James Chadwick  question:  what did chadwick identify?
Example Output:
Neutron