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 the ethiopian and eritrean war start?
[A]: When did the ethiopian and eritrean war start as measured by when a large Eritrean mechanized force entered the Badme region? 
 6 May 1998


[Q]: Sharks rays and skates belong to what group?
[A]: Sharks rays and skates belong to what class? 
 Chondrichthyes


[Q]: When's the next episode of steven universe coming out?
[A]:
When's episode 138 of steven universe coming out on TV? 
 December 29, 2017