question:
The latter included the track "Stairway to Heaven", which would become the most played song in the history of album-oriented radio.
Which Led Zeppelin album featured the hit "Stairway to Heaven"?

answer: no

question:
Not only were they the first important patrons of Cubism, Gertrude Stein and her brother Leo were also important influences on Cubism as well.
What was Gertrude Stein's brother's name?

answer: yes

question:
The primary physiological cue for migration are the changes in the day length.
What is the primary cue for migration?

answer: yes

question:
The Brown Shipbuilding Company was founded in 1942 to build ships for the U.S. Navy during World War II.
When was the Brown Shipbuilding Company founded?

answer:
yes