context: It is probably not the case that Bill moved to the garden. It is impossible that Julius is a swan. It is probable that Bernhard is a swan. There is little chance that if either Julius is a swan, or Bernhard is a swan, then Brian is a lion. It is impossible that if either Julius is a swan, or Bill moved to the garden, then Greg is a rhino. We doubt that if Bernhard is a swan, and Julius is a swan, then John went to the bedroom.
hypothesis: It is probably not the case that either John went to the bedroom, or Bill moved to the garden.
valid_hypothesis: It is probably not the case that either John went to the bedroom, or Bill moved to the garden.
invalid_hypothesis: It is almost certain that either John went to the bedroom, or Bill moved to the garden.
hypothesis_assertion: Either John went to the bedroom, or Bill moved to the garden.