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.

[EX Q]: What are the books in the game of thrones series?
[EX A]: What are the books in the game of thrones series, 1-5, that have already been released? 
 A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, A Dance with Dragons

[EX Q]: How many seasons is there of the simpsons?
[EX A]: How many seasons is there of the simpsons that started in 2017 or earlier? 
 29

[EX Q]: The key invention of the neolithic era was the development of?
[EX A]:
What was an important invention of the neolithic era? 
 plant domestication