context: It is probable that Sandra left the apple. It is probable that Jeff moved to the office. It is improbable that John went to the garden. Chances are slight that if Sandra left the apple, or Jeff moved to the office, then Bernhard is green. There is little chance that if either Sandra left the apple, or Jeff moved to the office, then Lily is gray. Chances are about even that if Jeff moved to the office, and Sandra left the apple, then Brian is a frog.
hypothesis: It is probably the case that lily is gray, and Sandra left the apple.
valid_hypothesis: There is almost no chance that lily is gray, and Sandra left the apple.
invalid_hypothesis: It is probably the case that lily is gray, and Sandra left the apple.
hypothesis_assertion: Lily is gray, and Sandra left the apple.