context: It is probably the case that Julius is yellow. It is highly likely that John went to the garden. We doubt that Bernhard is a swan. It is highly likely that if John went to the garden, and Julius is yellow, then Daniel is in the garden. It is probable that if John went to the garden, and Julius is yellow, then Brian is white. There is a better than even chance that if either Bernhard is a swan, or John went to the garden, then Greg is a rhino.
hypothesis: It is impossible that john went to the garden, or Bernhard is a swan.
valid_hypothesis: It is highly likely that john went to the garden, or Bernhard is a swan.
invalid_hypothesis: It is impossible that john went to the garden, or Bernhard is a swan.
hypothesis_assertion: John went to the garden, or Bernhard is a swan.