TASK DEFINITION: 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.
PROBLEM: 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

SOLUTION: What is Lady Zhen's spouse's name?

PROBLEM: Context : Harry Reeks was born in Covington, Louisiana.
Answer : Louisiana

SOLUTION: What city is Harry Reeks from?

PROBLEM: Context : The Megyeri Bridge, previously known as the Northern M0 Danube bridge, is a cable-stayed bridge that spans the River Danube between Buda and Pest, respectively the west and east sides of Budapest, the capital of Hungary.
Answer : Danube

SOLUTION:
Over what river does Megyeri Bridge cross?