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:
When's the last time the angels won the world series?
answer:
When's the last edition the angels won the world series?


question:
Who came up with the five factor model?
answer:
Who came up with the initial five factor model?


question:
Who hit 4 homeruns in one game last week?
answer:

Who hit 4 homeruns in one game on September 4, 2017?