context: We believe that Greg is white. It is probable that Bernhard is gray. There is little chance that Julius is a swan. It is probable that if either Julius is a swan, or Greg is white, then Brian is a frog. It is highly unlikely that if Bernhard is gray, and Julius is a swan, then John got the milk. We believe that if Greg is white, or Julius is a swan, then Mary went to the garden.
hypothesis: It is highly likely that mary went to the garden, or Bernhard is gray.
valid_hypothesis: It is highly likely that mary went to the garden, or Bernhard is gray.
invalid_hypothesis: It is highly unlikely that mary went to the garden, or Bernhard is gray.
hypothesis_assertion: Mary went to the garden, or Bernhard is gray.