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 is the peach bowl played this year?
answer:
When is the peach bowl played in 2016?


question:
When is the nfl hall of fame game being played?
answer:
When was the NFL Hall of Fame game in 2017?


question:
When did a/c first appear in homes?
answer:

When did the first a/c unit appear in a home?