Does the sentence "In the 1980s, Detroit was an important center of the hardcore punk rock underground with many nationally known bands coming out of the city and its suburbs, such as The Necros, The Meatmen, and Negative Approach." provide a valid answer to the question "What music genre was big in Detroit in the 1980s?"

A: yes

Does the sentence "By the 9th century, the large tribes which lived on the territory of modern Germany had been united under the rule of the Frankish king Charlemagne, known in German as Karl der Groe." provide a valid answer to the question "What century did King Charlemagne reign?"

A: yes

Does the sentence "Classes began on October 22, 1854, at the Benton School building." provide a valid answer to the question "When did classes first begin at Washington University?"

A: yes

Does the sentence "A small, landlocked kingdom, Swaziland is bordered in the North, West and South by the Republic of South Africa and by Mozambique in the East." provide a valid answer to the question "What nation is on the north, east, and western borders of Swaziland?"

A:
yes