context: Man in casual dark shirt and pants and hat dances with curly-haired blond woman in short red dress and red high heels
hypothesis: It is highly unlikely that dancing is going on in a big room.
valid_hypothesis: There is a very good chance that dancing is going on in a big room.
invalid_hypothesis: It is highly unlikely that dancing is going on in a big room.
hypothesis_assertion: Dancing is going on in a big room.