context: There is almost no chance that Julius is yellow. Chances are about even that Greg is a frog. It is certain that Lily is white.
hypothesis: It is certain that lily is white, and Greg is a frog.
valid_hypothesis: Chances are about even that lily is white, and Greg is a frog.
invalid_hypothesis: It is certain that lily is white, and Greg is a frog.
hypothesis_assertion: Lily is white, and Greg is a frog.