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.
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Question: When does the next episode of supernatural come out?

Answer: When does episode 8 of the 1997 TV series supernatural come out? 
 6 August 1977 9:45 p.m.


Question: When did singer start making electric sewing machines?

Answer: When did singer demonstrate the first workable electric sewing machine? 
 1889


Question: What is the cost of an airbus a380?

Answer:
What was the cost of the prototype of the Airbus A380? 
 €9.5 billion ($10.7 billion)