Q: Does "Charles V combined the Seventeen Provinces (the current Benelux and the northern parts of France) as a personal union." provide a valid answer to "What did Charles V combine"?
A: yes

Q: Does "As of 2015[update], Nigeria is the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively." provide a valid answer to "What is Nigeria's 2015 GDP?"?
A: yes

Q: Does "This period has been called the Golden Age of India and was marked by extensive achievements in science, technology, engineering, art, dialectic, literature, logic, mathematics, astronomy, religion, and philosophy that crystallized the elements of what is generally known as Hindu culture." provide a valid answer to "What is the period of the Gupta Empire called?"?
A: yes

Q: Does "In Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile." provide a valid answer to "What did Egyptian artists grind to use to paint on the walls of tombs or on papyrus?"?
A:
no