context: A crowd gathers along the handrail of a boardwalk to watch young men leap into the air on the beach sand.
hypothesis: It is almost certain that ten young men perform an interpretive dance at the beach.
valid_hypothesis: Chances are slight that ten young men perform an interpretive dance at the beach.
invalid_hypothesis: It is almost certain that ten young men perform an interpretive dance at the beach.
hypothesis_assertion: Ten young men perform an interpretive dance at the beach.