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.

Ex Input:
Context : ``Restful Place'' focuses on a curved limestone bench and above it is an arched bronze and glass canopy. 
Answer : limestone

Ex Output:
What is the surface of Restful Place made of?


Ex Input:
Context : Det var paa Rundetaarn is a 1955 Danish comedy film directed by Poul Bang and starring Dirch Passer. 
Answer : Poul Bang

Ex Output:
Who directed Det var paa Rundetaarn?


Ex Input:
Context : The Royal Albert Bridge is a railway bridge which spans the River Tamar in England between Plymouth, Devon and Saltash, Cornwall bank. 
Answer : Tamar

Ex Output:

Over which river does Royal Albert Bridge cross?