question:
The exterior includes flying buttresses added in the 14th century and a leaded tent-lantern roof on an iron frame designed by Scott.
When were the exterior flying buttresses added?

answer: yes

question:
Nigeria became the second African country to have successfully carried out this surgery.
When had Nigeria not had a reported polio case in 6 months for the first time?

answer: no

question:
Since 2001, CAP water has allowed the city to remove or turn off over 80 wells.
What is the CAP?

answer: no

question:
Paris is the home of the most visited art museum in the world, the Louvre, as well as the Musee d'Orsay, noted for its collection of French Impressionist art, and the Musee National d'Art Moderne, a museum of modern and contemporary art.
what is the Musee de Orsay known for?

answer:
yes