context: Chances are about even that Greg is gray. It is probably the case that Bill left the apple. It is certain that Brian is a frog.
hypothesis: There is a very good chance that greg is gray, or Bill left the apple.
valid_hypothesis: There is a very good chance that greg is gray, or Bill left the apple.
invalid_hypothesis: Chances are slight that greg is gray, or Bill left the apple.
hypothesis_assertion: Greg is gray, or Bill left the apple.