context: Chances are about even that John got the milk. It is probable that Bernhard is a lion. It is certain that Emily is a wolf. We believe that if either Emily is a wolf, or John got the milk, then Julius is a frog. It is probably not the case that if either Bernhard is a lion, or John got the milk, then Brian is yellow. There is a very good chance that if Bernhard is a lion, or Emily is a wolf, then Greg is a lion.
hypothesis: It is almost certain that brian is yellow, and Greg is a lion.
valid_hypothesis: It is improbable that brian is yellow, and Greg is a lion.
invalid_hypothesis: It is almost certain that brian is yellow, and Greg is a lion.
hypothesis_assertion: Brian is yellow, and Greg is a lion.