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.

What led to the end of indus valley civilization?
According to Sir Mortimer Wheeler in 1953, what led to the end of indus valley civilization? 
 "Aryan invasion"

Who played the first ryan on last man standing?
Who played Ryan on Season 1 of Last Man Standing? 
 Nick Jonas

Who is playing in the cotton bowl 2017?

Who is playing in the cotton bowl in December 2017? 
 Ohio State Buckeyes and USC Trojans