instruction:
You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).
question:
concept: J J Thomson  answers:  ['Electron']
answer:
what subatomic particles did jj thomson discover?


question:
concept: Lena River  answers:  ['Baikal Mountains']
answer:
where does lena river begin and end?


question:
concept: M C Escher  answers:  ['Giovanni Battista Piranesi']
answer:

what inspired m.c. escher to become an artist?