QUESTION: Generate a question with a factual answer?

ANS: Who first recognized that hydrogen was a discrete substance?

QUESTION: Generate a question with a factual answer?

ANS: Where does the Yangtze River flow in Nanjing?

QUESTION: Generate a question with a factual answer?

ANS: What are examples of chronic obstructive pulmonary disease?

QUESTION: Generate a question with a factual answer?

ANS:
How many municipalities?