TASK DEFINITION: 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.
PROBLEM: Who is the singer for system of a down?

SOLUTION: Who is the lead singer for system of a down? 
 Serj Tankian

PROBLEM: What year did assassins creed black flag come out?

SOLUTION: What year did assassins creed black flag originally come out? 
 2013

PROBLEM: Who plays in this year's world series?

SOLUTION:
Who played in the 2015 World Series?|Who played in the World Series in 2015? 
 Kansas City Royals