context: It is probable that Greg is gray. We doubt that John went to the bedroom. It is probably the case that Lily is gray. There is little chance that if Lily is gray, or John went to the bedroom, then Brian is a swan. It is almost certain that if either Lily is gray, or John went to the bedroom, then Julius is yellow. There is little chance that if either Greg is gray, or John went to the bedroom, then Winona is a mouse.
hypothesis: We believe that julius is yellow, or Lily is gray.
valid_hypothesis: We believe that julius is yellow, or Lily is gray.
invalid_hypothesis: It is unlikely that julius is yellow, or Lily is gray.
hypothesis_assertion: Julius is yellow, or Lily is gray.