context: A man with white hair wearing a gray suit speaks into a microphone with a metal jug sitting in front of him.
hypothesis: Chances are about even that a man is giving a speech on personal finance.
valid_hypothesis: Chances are about even that a man is giving a speech on personal finance.
invalid_hypothesis: It is certain that a man is giving a speech on personal finance.
hypothesis_assertion: A man is giving a speech on personal finance.