context: Chances are about even that Julie is in the bedroom. Chances are slight that Greg is a swan. Chances are about even that Brian is a rhino. There is a better than even chance that if Julie is in the bedroom, and Brian is a rhino, then Bernhard is green. It is unlikely that if Greg is a swan, or Brian is a rhino, then Lily is green. There is a better than even chance that if Greg is a swan, and Julie is in the bedroom, then Bill went to the hallway.
hypothesis: There is a very good chance that greg is a swan, or Bernhard is green.
valid_hypothesis: It is probably not the case that greg is a swan, or Bernhard is green.
invalid_hypothesis: There is a very good chance that greg is a swan, or Bernhard is green.
hypothesis_assertion: Greg is a swan, or Bernhard is green.