Does "Solar hot water systems use sunlight to heat water." contain the correct answer to "According to Shuman, up to what percentage of domestic hot water can be provided by solar heating systems?"

A: no

Does "The earliest reference to the keeping of live bears in the Barengraben dates to the 1440s." contain the correct answer to "What live animals did they keep in the Barengraben?"

A: yes

Does "Within hours of the UK and France declaring war on Germany on 3 September 1939, the RAF bombed German warships along the German coast at Wilhelmshaven." contain the correct answer to "The RAF bombed what Germany coast?"

A:
yes