Does the sentence "In 1975, the first practical solar boat was constructed in England." provide a valid answer to the question "Who first crossed the Pacific ocean using a solar powered boat?"

A: no

Does the sentence "Professor Andrew Prescott of the University of Sheffield writes: "Since at least the time of the Protocols of the Elders of Zion, antisemitism has gone hand in hand with anti-masonry, so it is not surprising that allegations that 11 September was a Zionist plot have been accompanied by suggestions that the attacks were inspired by a masonic world order"." provide a valid answer to the question "Who change the Iraqi legal and penal code in 1980?"

A: no

Does the sentence "Solan is the largest vegetable producing district in the state." provide a valid answer to the question "What is the state deficient in?"

A: no

Does the sentence "Details of school casualties had been under non-governmental investigation since December 2008 by volunteers including artist and architect Ai Weiwei, who had been constantly posting updates on his blog since March 2009." provide a valid answer to the question "When did an investigation occur under school casualties?"

A:
yes