context: Chances are about even that John grabbed the milk. It is probably not the case that Julius is a frog. It is highly likely that Greg is gray. It is likely that if either Julius is a frog, or John grabbed the milk, then Emily is a wolf. It is probably the case that if either John grabbed the milk, or Julius is a frog, then Mary is in the garden. Chances are about even that if Greg is gray, or Julius is a frog, then Bernhard is green.
hypothesis: There is little chance that julius is a frog, and Emily is a wolf.
valid_hypothesis: There is little chance that julius is a frog, and Emily is a wolf.
invalid_hypothesis: It is almost certain that julius is a frog, and Emily is a wolf.
hypothesis_assertion: Julius is a frog, and Emily is a wolf.