instruction:
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.
question:
Who played charles dickens in the man who invented christmas?
answer:
Who played adult charles dickens in the man who invented christmas?


question:
When do blair and the prince get married?
answer:
When do blair and the prince get married during Gossip Girl season 5?


question:
When did the potato come to north america?
answer:

When did the potato possibly come to north america?