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.

Input: Consider Input: Context : The Kensington Canal was a canal, about two miles long, opened in 1828 in London from the River Thames at Chelsea, along the line of Counter's Creek, to a basin near Warwick Road in Kensington. 
Answer : 1828

Output: What was the date of the opening of Kensington Canal?


Input: Consider Input: Context : Eugène Adrien Roland Georges Garros was born in Saint-Denis, Réunion, and studied at the Lycée Janson de Sailly and HEC Paris. 
Answer : HEC Paris

Output: The college Roland Georges Garros attended was what?


Input: Consider Input: Context : Robert G. Emmens (July 22, 1914 - April 2, 1992) was a Doolittle Raider and a career United States Air Force officer. 
Answer : United States Air Force


Output: To which branch did Robert G. Emmens belong?