Does the sentence "They were strongly emphasized by the teachings of Confucius and Mencius (ca 550 BC), which were required reading for the educated samurai class." provide a valid answer to the question "Who were most samurais' lords?"

A: no

Does the sentence "Agassiz studied glacier movement in the 1840s at the Unteraar Glacier where he found the glacier moved 100 m (328 ft) per year, more rapidly in the middle than at the edges." provide a valid answer to the question "Agassiz found that the Unteraar Glacier moved how much per year?"

A: yes

Does the sentence "In the film Knute Rockne, All American, Knute Rockne (played by Pat O'Brien) delivers the famous "Win one for the Gipper" speech, at which point the background music swells with the "Notre Dame Victory March"." provide a valid answer to the question "In what film did a parody of the "Win one for the Gipper" speech appear?"

A: no

Does the sentence "The city was originally built on an island of Lake Texcoco by the Aztecs in 1325 as Tenochtitlan, which was almost completely destroyed in the 1521 siege of Tenochtitlan, and subsequently redesigned and rebuilt in accordance with the Spanish urban standards." provide a valid answer to the question "Who originally built Mexico City?"

A:
yes