context: There is little chance that Lily is a rhino. Chances are slight that Mary moved to the office. There is a very good chance that Julius is a swan. It is certain that if Julius is a swan, and Lily is a rhino, then Bernhard is white. Chances are slight that if Lily is a rhino, or Mary moved to the office, then Bill went to the bedroom. Chances are about even that if Julius is a swan, and Lily is a rhino, then Gertrude is a mouse.
hypothesis: It is unlikely that either Mary moved to the office, or Lily is a rhino.
valid_hypothesis: It is unlikely that either Mary moved to the office, or Lily is a rhino.
invalid_hypothesis: There is a very good chance that either Mary moved to the office, or Lily is a rhino.
hypothesis_assertion: Either Mary moved to the office, or Lily is a rhino.