context: It is probable that Lily is white. Chances are about even that Brian is green. There is little chance that John grabbed the apple.
hypothesis: Chances are about even that either Lily is white, or Brian is green.
valid_hypothesis: Chances are about even that either Lily is white, or Brian is green.
invalid_hypothesis: There is almost no chance that either Lily is white, or Brian is green.
hypothesis_assertion: Either Lily is white, or Brian is green.