context: An older and younger man smiling.
hypothesis: We believe that two men are smiling and laughing at the cats playing on the floor.
valid_hypothesis: It is impossible that two men are smiling and laughing at the cats playing on the floor.
invalid_hypothesis: We believe that two men are smiling and laughing at the cats playing on the floor.
hypothesis_assertion: Two men are smiling and laughing at the cats playing on the floor.