Does the sentence "He turned to medicine at 16, and not only learned medical theory, but also by gratuitous attendance of the sick had, according to his own account, discovered new methods of treatment." provide a valid answer to the question "What subject did Avicenna start studying at 16?"

A: yes

Does the sentence "Coca Cola ended their longtime sponsorship of the show and Ford Motor Company maintained a reduced role." provide a valid answer to the question "Who ended their sponsorship this season?"

A: yes

Does the sentence "Prompted by legislation in various countries mandating increased bulb efficiency, new "hybrid" incandescent bulbs have been introduced by Philips." provide a valid answer to the question "How much more efficient are Halogena Energy Saver bulbs compared to incandescents?"

A: no

Does the sentence "Kansas successfully appealed State v. Kleypas, the Kansas Supreme Court decision that declared the state's death penalty statute unconstitutional, to the United States Supreme Court." provide a valid answer to the question "What method of execution did the Nebraska Supreme Court rule unconstitutional?"

A:
no