QUESTION: Generate a question with a factual answer?

ANS: In what year did the subway begin operation?

QUESTION: Generate a question with a factual answer?

ANS: Is Southwest Ledge Light still active today?

QUESTION: Generate a question with a factual answer?

ANS: What did the removal of the ban result in?

QUESTION: Generate a question with a factual answer?

ANS:
What are most words in Old Chinese?