Q: Does "The ruins of rammed-earth walls that once surrounded the capitals Chang'an and Luoyang still stand, along with their drainage systems of brick arches, ditches, and ceramic water pipes." provide a valid answer to "What type of system used ceramic water pipes?"?
A: yes

Q: Does "Oxidation of hydrogen removes its electron and gives H+, which contains no electrons and a nucleus which is usually composed of one proton." provide a valid answer to "When hydrogen oxidates, what is it removing?"?
A: yes

Q: Does "By 1811, Napoleon ruled over 70 million people across an empire that had domination in Europe, which had not witnessed this level of political consolidation since the days of the Roman Empire." provide a valid answer to "Who did Napoleon declare King of Spain in 1808?"?
A: no

Q: Does "Style Weekly is a standard weekly publication covering popular culture, arts, and entertainment, owned by Landmark Communications." provide a valid answer to "Before switching to its current publication schedule, how often was RVA Magazine published?"?
A:
no