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.

When did the volcano in tenerife last erupt?
When did the volcano Chahorra o Narices del Teide in tenerife last erupt? 
 1798

Who is the onion knight in game of thrones?
Which character is the onion knight in game of thrones? 
 Davos Shorthand

Who sings the song with or without you?

Which band sings the song "With or Without You"? 
 U2