context: It is unlikely that Bernhard is green. It is impossible that Fred left the football. It is impossible that Lily is a lion.
hypothesis: It is likely that either Lily is a lion, or Fred left the football.
valid_hypothesis: It is impossible that either Lily is a lion, or Fred left the football.
invalid_hypothesis: It is likely that either Lily is a lion, or Fred left the football.
hypothesis_assertion: Either Lily is a lion, or Fred left the football.