context: It is certain that Bernhard is a swan. It is probable that Lily is a frog. It is highly unlikely that Fred left the football.
hypothesis: It is certain that bernhard is a swan, or Fred left the football.
valid_hypothesis: It is certain that bernhard is a swan, or Fred left the football.
invalid_hypothesis: It is unlikely that bernhard is a swan, or Fred left the football.
hypothesis_assertion: Bernhard is a swan, or Fred left the football.