context: There is almost no chance that Greg is yellow. It is probably the case that Julius is a rhino. Chances are about even that Brian is gray. It is certain that if Julius is a rhino, and Brian is gray, then Bernhard is a lion. It is probably not the case that if Julius is a rhino, and Greg is yellow, then Mary went to the office. It is unlikely that if either Greg is yellow, or Julius is a rhino, then Lily is a frog.
hypothesis: It is highly unlikely that lily is a frog, and Brian is gray.
valid_hypothesis: It is highly unlikely that lily is a frog, and Brian is gray.
invalid_hypothesis: It is likely that lily is a frog, and Brian is gray.
hypothesis_assertion: Lily is a frog, and Brian is gray.