context: We doubt that John moved to the garden. It is certain that Mary got the milk. Chances are slight that Greg is green.
hypothesis: There is a very good chance that greg is green, or John moved to the garden.
valid_hypothesis: It is probably not the case that greg is green, or John moved to the garden.
invalid_hypothesis: There is a very good chance that greg is green, or John moved to the garden.
hypothesis_assertion: Greg is green, or John moved to the garden.