Does the sentence "To distinguish official campaigning from independent campaigning, political advertisements on television were required to include a verbal disclaimer identifying the organization responsible for the advertisement." provide a valid answer to the question "How were viewers able to determine who endorsed political campaign ads, they saw in advertisements??"

A: yes

Does the sentence "During the 1970s and 1990s, there was an epistemological shift away from the positivist traditions that had largely informed the discipline.[page needed]" provide a valid answer to the question "What has sociocultural anthropology been heavily influenced by?"

A: no

Does the sentence "The project team stated "Why Avicenna?" provide a valid answer to the question "What does the Avicenna Directories contain?"

A: no

Does the sentence "A variation of the incandescent lamp did not use a hot wire filament, but instead used an arc struck on a spherical bead electrode to produce heat." provide a valid answer to the question "What did an alternate version of the incandescent lamp substitute for a wire filament?"

A:
yes