TASK DEFINITION: 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).
PROBLEM: concept: Hmv Group Plc  answers:  ['Waterstones']

SOLUTION: which hmv stores are open?

PROBLEM: concept: Jessica Simpson  answers:  ['Nick Lachey']

SOLUTION: who married jessica simpson?

PROBLEM: concept: Abraham Lincoln  answers:  ['Mary Todd Lincoln']

SOLUTION:
what was abe lincoln's wife name?