context: It is certain that Jeff went to the garden. It is highly likely that Brian is gray. There is almost no chance that Julius is green.
hypothesis: Chances are slight that either Brian is gray, or Jeff went to the garden.
valid_hypothesis: Chances are slight that either Brian is gray, or Jeff went to the garden.
invalid_hypothesis: It is certain that either Brian is gray, or Jeff went to the garden.
hypothesis_assertion: Either Brian is gray, or Jeff went to the garden.