context: It is probably not the case that Jeff moved to the office. We doubt that Bernhard is white. It is probable that Brian is a frog. It is improbable that if Bernhard is white, or Jeff moved to the office, then Mary dropped the milk. It is highly unlikely that if Jeff moved to the office, or Bernhard is white, then Greg is gray. It is likely that if Bernhard is white, or Brian is a frog, then John went to the garden.
hypothesis: It is probable that either John went to the garden, or Brian is a frog.
valid_hypothesis: It is probably not the case that either John went to the garden, or Brian is a frog.
invalid_hypothesis: It is probable that either John went to the garden, or Brian is a frog.
hypothesis_assertion: Either John went to the garden, or Brian is a frog.