Does "Its onset in dim light, dim-light melatonin onset (DLMO), at roughly 21:00 (9 p.m.) can be measured in the blood or the saliva." contain the correct answer to "When is the melatonin onset?"

A: yes

Does "Apple introduced a new 8-pin dock connector, named Lightning, on September 12, 2012 with their announcement of the iPhone 5, the fifth generation iPod Touch, and the seventh generation iPod Nano, which all feature it." contain the correct answer to "How many pins did the Lightning connector have?"

A: yes

Does "To promote the film, Beyonce released "Listen" as the lead single from the soundtrack album." contain the correct answer to "Who was Beyonce's duet with in ''Beautiful Liar''?"

A:
no