context: A group of people are in a rowboat in the ocean surrounded by seagulls.
hypothesis: It is highly unlikely that a group of people are rowing towards some islands while one of them fishes.
valid_hypothesis: It is highly unlikely that a group of people are rowing towards some islands while one of them fishes.
invalid_hypothesis: Chances are about even that a group of people are rowing towards some islands while one of them fishes.
hypothesis_assertion: A group of people are rowing towards some islands while one of them fishes.