Does the sentence "Wood is a heterogeneous, hygroscopic, cellular and anisotropic material." provide a valid answer to the question "What makes up 40-50% of the cell walls in wood?"

A: no

Does the sentence "During the 11th and 12th centuries, these lands, or fiefs, came to be considered hereditary, and in most areas they were no longer divisible between all the heirs as had been the case in the early medieval period." provide a valid answer to the question "In what century were castles first built?"

A: no

Does the sentence "They also state that since successors of lamas granted the title of "prince" had to travel to the Ming court to renew this title, and since lamas called themselves princes, the Ming court therefore had "full sovereignty over Tibet." provide a valid answer to the question "What did the lamas called themselves?"

A: yes

Does the sentence "The city provides for yachting and water sports, with a number of marinas." provide a valid answer to the question "What was the former name of the Volvo Ocean Race?"

A:
no