context: It is improbable that Greg is yellow. It is impossible that Lily is white. It is likely that Julius is a frog.
hypothesis: There is a better than even chance that lily is white, and Greg is yellow.
valid_hypothesis: It is impossible that lily is white, and Greg is yellow.
invalid_hypothesis: There is a better than even chance that lily is white, and Greg is yellow.
hypothesis_assertion: Lily is white, and Greg is yellow.