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 did the afghanistan war start and end?

SOLUTION: When did the afghanistan war first phase start?

PROBLEM: Where is tottenham's new ground being built?

SOLUTION: Where is the district tottenham's new ground being built?

PROBLEM: Who developed the steam engine that could drive machinery?

SOLUTION:
Who developed the steam engine that could power textile machinery?