Generate a question with a factual answer.
Generated: For best fidelity to the source, what three things should match the source?

Generate a question with a factual answer.
Generated: How many states are on the Frontier Strip?

Generate a question with a factual answer.
Generated: Why is xenon gas not more widely used?

Generate a question with a factual answer.
Generated: When did the Umayyads begin to occupy Iberia?