context: A man is singing on stage with his fingers in a stuffed bear's nose.
hypothesis: It is impossible that the man on stage singing with his fingers in a bear's nose is mute.
valid_hypothesis: It is impossible that the man on stage singing with his fingers in a bear's nose is mute.
invalid_hypothesis: It is probable that the man on stage singing with his fingers in a bear's nose is mute.
hypothesis_assertion: The man on stage singing with his fingers in a bear's nose is mute.