Q: Does "Eisenhower was the only general to serve as President in the 20th century and the most recent President to have never held elected office prior to the Presidency (The other Presidents who did not have prior elected office were Zachary Taylor, Ulysses S. Grant, William Howard Taft and Herbert Hoover)." provide a valid answer to "What did Eisenhower have in common with presidents Taylor, Grant, Taft and Hoover?"?
A: yes

Q: Does "The madaris, however, were not centres of advanced scientific study; scientific advances in Islam were usually carried out by scholars working under the patronage of royal courts." provide a valid answer to "Who traditionally paid for scholars to study natural sciences?"?
A: yes

Q: Does "Falcons and cormorants have long been used for hunting and fishing, respectively." provide a valid answer to "How long have messenger pigeons been used?"?
A: no

Q: Does "The Guardian in 2009 described users' comments on YouTube as:" provide a valid answer to "Which magazine wrote about youtube in a 2009 article on user comments?"?
A:
yes