Generate a question with a factual answer.
Generated: What is defined as the official codification of federal statutory law?

Generate a question with a factual answer.
Generated: Fossils found in the Tonian period indicate the presence of what creatures?

Generate a question with a factual answer.
Generated: What role did Eisenhower serve under Fox Conner?

Generate a question with a factual answer.
Generated: How did Valens get him to return?