Does the sentence "The 1850 census saw a dramatic shift in the way information about residents was collected." provide a valid answer to the question "In what year were free persons first listed individually in the US census?"

A: yes

Does the sentence "An important aim of the minority leader is to develop an electorally attractive agenda of ideas and proposals that unites his or her own House members and that energizes and appeals to core electoral supporters as well as independents and swing voters." provide a valid answer to the question "What non party affiliated voters are critical for party to attract in elections?"

A: yes

Does the sentence "The computational device that Feynman discovered then for gravity, "ghosts", which are "particles" in the interior of his diagrams that have the "wrong" connection between spin and statistics, have proved invaluable in explaining the quantum particle behavior of the YangMills theories, for example, QCD and the electro-weak theory." provide a valid answer to the question "Which parts of the Yang-Mills theories did Feynman help explain?"

A: yes

Does the sentence "In the 1990s, notable players sold for anywhere from US$200 to well over $1,000, while older and less desirable players could be purchased in working condition for as little as $25." provide a valid answer to the question "What range of prices were high-end LaserDisc players in the 1990s?"

A:
yes