Does the sentence "The literary centres of London have traditionally been hilly Hampstead and (since the early 20th century) Bloomsbury." provide a valid answer to the question "What area has historically been the literary hub of London?"

A: yes

Does the sentence "The English nuns were proud of this heritage, and aware that many of them shared in England's great history as members of the noble class, as seen in the next chapter." provide a valid answer to the question "What book could be found in The Dartford sister's library?"

A: no

Does the sentence "However, the mandolin's modern popularity in country music can be directly traced to one man: Bill Monroe, the father of bluegrass music." provide a valid answer to the question "What type of mandolin was becoming popular by 1930's?"

A: no

Does the sentence "U.S. losses totaled 38 ships of all types sunk and 368 damaged with 4,900 sailors killed." provide a valid answer to the question "How many U.S. ships were lost at Okinawa?"

A:
yes