TASK DEFINITION: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
PROBLEM: The Witte Huis (Dutch pronunciation: (t ys)) or White House is a building and National Heritage Site in Rotterdam, Netherlands, built in 1898 in the Art Nouveau style.

SOLUTION: The art style of Witte Huis is what?

PROBLEM: Oedipus and the Sphinx is an 1864 oil on canvas painting by Gustave Moreau that was first exhibited at the French Salon of 1864 where it was an immediate success.

SOLUTION: What is the surface of Oedipus and the Sphinx made of?

PROBLEM: 6141 Durda (1992 YC3) is a Mars-crossing asteroid discovered on December 26, 1992 by Spacewatch at Kitt Peak.

SOLUTION:
Who was the original discoverer of 6141 Durda?