Does the sentence "The Northwestern Journal of Technology and Intellectual Property is a law review published by an independent student organization at Northwestern University School of Law." provide a valid answer to the question "Who publishes the Northwestern Journal of Technology and Intellectual Property?"

A: yes

Does the sentence "Especially during the Mamluk period, when only former slaves could assume power, the sons of the ruling Mamluk elite were unable to inherit." provide a valid answer to the question "What allowed the ruling elite to maintain power during the Mamluk period?"

A: no

Does the sentence "American critic Greil Marcus characterised "Britain's postpunk pop avant-garde" in a 1980 Rolling Stone article as "sparked by a tension, humour and sense of paradox plainly unique in present day pop music"as well as media figures such as BBC DJ John Peel, while several groups, such as PiL and Joy Division, achieved some success in the popular charts." provide a valid answer to the question "What corporation was John Peel a DJ for?"

A: yes

Does the sentence "Seeking to harm enemies becomes corruption when official powers are illegitimately used as means to this end." provide a valid answer to the question "False charges can be brought against a journalist who writes about what?"

A:
no