context: A man in a black shirt painting a duplicate copy of another painting hanging in an art gallery.
hypothesis: It is impossible that the man is painting a copy of the Mona Lisa.
valid_hypothesis: It is impossible that the man is painting a copy of the Mona Lisa.
invalid_hypothesis: We believe that the man is painting a copy of the Mona Lisa.
hypothesis_assertion: The man is painting a copy of the Mona Lisa.