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 did apple stop supporting safari for windows?
answer:
What year did apple stop supporting safari for windows?


question:
Why would a recrystallization need to be done?
answer:
Why would recrystallization need to be done in chemistry?


question:
Who was looking for a heart in the wizard of oz?
answer:

Who is the character that was looking for a heart in the wizard of oz?