context: It is probably the case that Brian is a lion. It is probable that Lily is yellow. Chances are about even that Greg is green.
hypothesis: There is almost no chance that brian is a lion, and Lily is yellow.
valid_hypothesis: Chances are about even that brian is a lion, and Lily is yellow.
invalid_hypothesis: There is almost no chance that brian is a lion, and Lily is yellow.
hypothesis_assertion: Brian is a lion, and Lily is yellow.