Does the sentence "Of those, 2000 were sent to Nazi concentration camps, where they were identified by purple triangles; as many as 1200 died, including 250 who were executed." provide a valid answer to the question "What were Jehovah's Witnesses identified by in Nazi concentration camps?"

A: yes

Does the sentence "While equal temperament became gradually accepted as the dominant musical temperament during the 18th century, different historical temperaments are often used for music from earlier periods." provide a valid answer to the question "What temperament is the English Renaissance performed in?"

A: no

Does the sentence "Some hospital elevators will feature a 'hold' position on the code-blue key switch (similar to fire service) which allows the elevator to remain at a floor locked out of service until code blue is deactivated." provide a valid answer to the question "What steps do medical personnel take at that point?"

A: no

Does the sentence "As of the 2010 census, there were 579,999 people, 230,233 households, and 144,120 families residing in the city." provide a valid answer to the question "How many housing units were there for the 2010 census?"

A:
no