Does the sentence "Nanjing borders Yangzhou to the northeast, one town downstream when following the north bank of the Yangtze, Zhenjiang to the east, one town downstream when following the south bank of the Yangtze, and Changzhou to the southeast." provide a valid answer to the question "How many prefecture-size cities are in the province of Anhui?"

A: no

Does the sentence "Among Northwestern's more notable alumni are U.S. Senator and presidential candidate George McGovern, Nobel Prizewinning economist George J. Stigler, Nobel Prizewinning novelist Saul Bellow, Pulitzer Prizewinning composer and diarist Ned Rorem, the much-decorated composer Howard Hanson, Deputy Prime Minister of Turkey Ali Babacan, the historian and novelist Wilma Dykeman, and the founder of the presidential prayer breakfast Abraham Vereide." provide a valid answer to the question "Which of Northwestern's alumni is notable for being the founder of the presidential prayer breakfast?"

A: yes

Does the sentence "Generally, in the United States, Gibson F-hole F-5 mandolins and mandolins influenced by that design are strongly associated with bluegrass, while the A-style is associated other types of music, although it too is most often used for and associated with bluegrass." provide a valid answer to the question "Where are the soundholes located?"

A: no

Does the sentence "In time, they amassed enough manpower, resources and political backing in the form of alliances with one another, to establish the first samurai-dominated government." provide a valid answer to the question "What clans were most regional clans' chiefs also a member of?"

A:
no