context: A man wearing a long brown robe is playing the guitar while another person is sitting at the drums and yet another is wearing a long gray robe and singing.
hypothesis: It is almost certain that the man is a great guitar player.
valid_hypothesis: It is impossible that the man is a great guitar player.
invalid_hypothesis: It is almost certain that the man is a great guitar player.
hypothesis_assertion: The man is a great guitar player.