In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to provide one question which clarifies the input question and it has one unique answer, and also provide an answer to the generated question. Generated question and answer should be separated with a new line.

[Q]: When did they start the 3 point shot in basketball?
[A]: When did they start experimenting with the 3 point shot in basketball? 
 1945


[Q]: What do brackets in an chemical equation mean?
[A]: What do square brackets in an chemical equation mean for molecules? 
 used around the chemical molecular formula


[Q]: Who was the singing voice of elsa in frozen?
[A]:
Who was the singing voice of Elsa in the original English version of Frozen? 
 Idina Menzel