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: Lena River  question:  where does lena river begin and end?

Ex Output:
['Baikal Mountains']


Ex Input:
concept: Cavalier King Charles Spaniel  question:  what is a king charles cavalier dog?

Ex Output:
['Toy Group']


Ex Input:
concept: Bilbo Baggins  question:  who is playing bilbo baggins?

Ex Output:

Norman Bird, Martin Freeman, Ian Holm