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

SOLUTION: What is the surface of Restful Place made of?

PROBLEM: Context : Karl Emil Schafer (17 December 1891 -- 5 June 1917) was a German pilot during World War I; he became one of the major German flying aces of the war, with 30 confirmed aerial victories.
Answer : World War I

SOLUTION: What was the war that Karl Emil Schafer fought in?

PROBLEM: Context : The Baron of Maua International Bridge (Portuguese: Ponte Internacional Barao de Maua, Spanish: Puente Internacional Baron de Maua) is a bridge that crosses the Jaguarao River, linking the cities of Jaguarao, Rio Grande do Sul, Brazil and Rio Branco, Uruguay.
Answer : Jaguarao River

SOLUTION:
Over what river does Baron of Maua International Bridge cross?