context: It is probably the case that Brian is gray. It is highly unlikely that Bernhard is a lion. It is improbable that Lily is a rhino. There is little chance that if Lily is a rhino, or Bernhard is a lion, then Julius is white. Chances are about even that if either Lily is a rhino, or Bernhard is a lion, then Sandra left the football. Chances are about even that if Bernhard is a lion, or Brian is gray, then Bill went to the bedroom.
hypothesis: It is probably not the case that julius is white, or Bill went to the bedroom.
valid_hypothesis: It is probably not the case that julius is white, or Bill went to the bedroom.
invalid_hypothesis: It is highly likely that julius is white, or Bill went to the bedroom.
hypothesis_assertion: Julius is white, or Bill went to the bedroom.