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 : Essent is part of RWE AG. Essent has 2.3 million customers for electricity and about 2.0 million for gas.
Answer : RWE
Which company is the parent company of Essent?

Context : On that occasion, about a third of the commune of Ivry-sur-Seine was annexed to Paris, and now forms the Chinatown area of the 13th arrondissement of Paris.
Answer : 13th arrondissement of Paris
By what was Ivry-sur-Seine replaced?

Context : Gabriel Ferreira Ioshida is a Brazilian male acrobatic gymnast.
Answer : male
What is the sex of Gabriel Ferreira Ioshida?