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 year was fiddler on the roof made?
When was the Fiddler on the Roof musical written? 
 1964

When will the first tesla model 3 be delivered?
When will the first Tesla Model 3 be delivered to Musk himself? 
 July 7, 2017

When did blood transfusions become safer and why?

What year did blood transfusions become safer thanks to Karl Landsteiner? 
 1901