QUES: Q: What was used to power chain pumps to raise water to irrigation ditches?
A: As mentioned by Huan Tan in about 20 AD, they were used to turn gears that lifted iron trip hammers, and were used in pounding, threshing and polishing grain.
Does the answer answer the question?

ANS: no

QUES: Q: Who is the head of government?
A: The president is the head of state and the prime minister is the head of government.
Does the answer answer the question?

ANS: yes

QUES: Q: Along with being carved, how were altarpieces often decorated in this period?
A: Painted or carved wooden relief altarpieces became common, especially as churches created many side-chapels.
Does the answer answer the question?

ANS: yes

QUES: Q: Both authors valued what over social standing?
A: Literary critic Jean Blackall lists the priorities shared by the two authors: "affirmation of order in society, obedience, courtesy, and respect for the individual without regard for status".
Does the answer answer the question?

ANS:
no