TASK DEFINITION: In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to write a question that clarifies the given question in such a way that the generated question has one unique answer.
PROBLEM: When does series 11 of big bang theory start?

SOLUTION: When does series 11 of big bang theory start airing?

PROBLEM: Most goals scored by a single player in an nhl game?

SOLUTION: What was the most goals scored by a single player in an NHL game?

PROBLEM: Who does the voice of poppy from trolls?

SOLUTION:
Who does the voice of adult poppy from trolls?