context: It is unlikely that Julius is green. It is probable that Lily is a swan. We doubt that Fred left the milk. There is little chance that if Lily is a swan, or Fred left the milk, then Bernhard is a frog. There is almost no chance that if either Fred left the milk, or Lily is a swan, then John went to the garden. It is highly unlikely that if either Fred left the milk, or Lily is a swan, then Daniel dropped the milk.
hypothesis: We believe that john went to the garden, or Bernhard is a frog.
valid_hypothesis: There is little chance that john went to the garden, or Bernhard is a frog.
invalid_hypothesis: We believe that john went to the garden, or Bernhard is a frog.
hypothesis_assertion: John went to the garden, or Bernhard is a frog.