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 29th Venice International Film Festival was held from 25 August to 7 September 1968. 
Answer : 1968
The date of 29th Venice International Film Festival was what?

Context : Lady Zhen (26 January 183 -- 4 August 221), personal name unknown, was the first wife of Cao Pi, the first ruler of the state of Cao Wei in the Three Kingdoms period. 
Answer : Cao Pi
What is Lady Zhen's spouse's name?

Context : NGC 1309 is a spiral galaxy located approximately 120 million light-years away in the constellation Eridanus. 
Answer : Eridanus

What is the constellation where NGC 1309 is located?