context: It is probably the case that Brian is gray. It is highly likely that John moved to the garden. It is likely that Gertrude is a mouse.
hypothesis: It is probably not the case that either Brian is gray, or John moved to the garden.
valid_hypothesis: It is probably not the case that either Brian is gray, or John moved to the garden.
invalid_hypothesis: It is probably the case that either Brian is gray, or John moved to the garden.
hypothesis_assertion: Either Brian is gray, or John moved to the garden.