context: It is unlikely that John got the apple. Chances are slight that Jeff moved to the office. There is a very good chance that Mary is in the garden. We doubt that if either Jeff moved to the office, or Mary is in the garden, then Sandra took the milk. Chances are slight that if Mary is in the garden, and John got the apple, then Bernhard is a lion. Chances are about even that if Jeff moved to the office, or John got the apple, then Brian is green.
hypothesis: It is probably the case that either Jeff moved to the office, or John got the apple.
valid_hypothesis: It is probably not the case that either Jeff moved to the office, or John got the apple.
invalid_hypothesis: It is probably the case that either Jeff moved to the office, or John got the apple.
hypothesis_assertion: Either Jeff moved to the office, or John got the apple.