context: We doubt that Lily is green. It is impossible that Julius is a frog. It is impossible that John put down the apple. Chances are about even that if Julius is a frog, and John put down the apple, then Brian is gray. We doubt that if either John put down the apple, or Julius is a frog, then Greg is a swan. It is unlikely that if Julius is a frog, and Lily is green, then Mary moved to the office.
hypothesis: We doubt that lily is green, or Julius is a frog.
valid_hypothesis: We doubt that lily is green, or Julius is a frog.
invalid_hypothesis: We believe that lily is green, or Julius is a frog.
hypothesis_assertion: Lily is green, or Julius is a frog.