Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : The Boeing KC-767 is a military aerial refueling and strategic transport aircraft developed from the Boeing 767-200ER. 
Answer : Boeing 767-200ER
The Boeing KC-767 is based upon what?

Context : Production of the 2S5 Giatsint-S started in 1976 along with the towed version the 2A36 Giatsint-B. It was introduced into service in 1978 and has also been known as the M1981 by the United States. 
Answer : 1978
What year did 2S5 Giatsint-S come into use?

Context : Gaia Cornelia Supera was the Empress of Rome and wife of Emperor Aemilianus who ruled briefly in 253. 
Answer : Aemilianus

What is Cornelia Supera's spouse's name?