QUES: Q: How many years was Parral an important economic and cultural center?
A: Parral remained an important economic and cultural center for the next 300 years.
Does the answer answer the question?

ANS: yes

QUES: Q: In what century had mills such as gristmills and sawmills dominate the Islamic world?
A: The industrial uses of watermills in the Islamic world date back to the 7th century, while horizontal-wheeled and vertical-wheeled water mills were both in widespread use since at least the 9th century.
Does the answer answer the question?

ANS: no

QUES: Q: What are common things like furniture and stationary objects actually made of?
A: Equivalently, the smallness of the Planck constant reflects the fact that everyday objects and systems are made of a large number of particles.
Does the answer answer the question?

ANS: yes

QUES: Q: What is Guam's climate characterized as?
A: Guam's climate is characterized as tropical marine moderated by seasonal northeast trade winds.
Does the answer answer the question?

ANS:
yes