context: One man, shirtless, and a woman, clothed, jumping in the water.
hypothesis: It is almost certain that a husband and wife are being spontaneous by jumping in a freezing river.
valid_hypothesis: There is almost no chance that a husband and wife are being spontaneous by jumping in a freezing river.
invalid_hypothesis: It is almost certain that a husband and wife are being spontaneous by jumping in a freezing river.
hypothesis_assertion: A husband and wife are being spontaneous by jumping in a freezing river.