context: It is improbable that Julius is white. It is impossible that John dropped the apple. There is little chance that Bernhard is a rhino. It is unlikely that if either John dropped the apple, or Julius is white, then Fred is in the bedroom. Chances are about even that if Julius is white, and Bernhard is a rhino, then Greg is green. It is improbable that if Bernhard is a rhino, or John dropped the apple, then Mary moved to the office.
hypothesis: There is a very good chance that mary moved to the office, or Bernhard is a rhino.
valid_hypothesis: Chances are slight that mary moved to the office, or Bernhard is a rhino.
invalid_hypothesis: There is a very good chance that mary moved to the office, or Bernhard is a rhino.
hypothesis_assertion: Mary moved to the office, or Bernhard is a rhino.