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 : Preparing for a Fancy Dress Ball, also known as The Misses Williams-Wynn, is a 173 by 150 cm (68 by 59 in) oil on canvas by English artist William Etty, first exhibited in 1835 and currently in the York Art Gallery. 
Answer : York Art Gallery
What is the name of the place where Preparing for a Fancy Dress Ball can be found?

Context : The Negress was purchased by the Indianapolis Museum of Art in 1980. 
Answer : Indianapolis Museum of Art
What is the name of the place where The Negress can be found?

Context : The Cobblers' Bridge or the Shoemakers' Bridge (Slovene: Čevljarski most or Šuštarski most) is a bridge crossing the river Ljubljanica in Ljubljana, the capital of Slovenia. 
Answer : Ljubljanica

Over which river does Cobblers' Bridge cross?