Does the sentence "Canada has the world's largest deposit of natural bitumen in the Athabasca oil sands and Canadian First Nations along the Athabasca River had long used it to waterproof their canoes." provide a valid answer to the question "For what did Canadian natives use asphalt as a waterproofing material?"

A: yes

Does the sentence "Paraplegia, the loss of sensation and voluntary motor control after serious spinal cord damage, may be accompanied by girdle pain at the level of the spinal cord damage, visceral pain evoked by a filling bladder or bowel, or, in five to ten per cent of paraplegics, phantom body pain in areas of complete sensory loss." provide a valid answer to the question "What can cause paraplegia?"

A: yes

Does the sentence "The legal privileges of the szlachta were legally abolished in the Second Polish Republic by the March Constitution of 1921." provide a valid answer to the question "What was one name of a power that the szlachta was dependent on."

A: no

Does the sentence "According to Barbara Ellen of The Guardian Beyonce is the most in-charge female artist she's seen onstage, while Alice Jones of The Independent wrote she "takes her role as entertainer so seriously she's almost too good."" provide a valid answer to the question "Who has said that Beyonce is the best entertainer alive?"

A:
no