Does "In December, Beyonce along with a variety of other celebrities teamed up and produced a video campaign for "Demand A Plan", a bipartisan effort by a group of 950 US mayors and others designed to influence the federal government into rethinking its gun control laws, following the Sandy Hook Elementary School shooting." contain the correct answer to "The Demand a Plan video campaign followed what tragic event?"

A: yes

Does "It may have been influenced by Greek traditions, such as festivities for deities such as Dionysus." contain the correct answer to "How long has Carnival been celebrated?"

A: no

Does "The two largest metropolitan areas have subway systems: Lisbon Metro and Metro Sul do Tejo in the Lisbon Metropolitan Area and Porto Metro in the Porto Metropolitan Area, each with more than 35 km (22 mi) of lines." contain the correct answer to "How long are each of the subway systems?"

A:
yes