context: It is probably not the case that Fred left the milk. It is unlikely that Julius is green. It is highly likely that Mary went to the garden. There is almost no chance that if Julius is green, and Fred left the milk, then Brian is a lion. It is probably the case that if Fred left the milk, and Mary went to the garden, then Bernhard is a swan. It is certain that if Fred left the milk, or Mary went to the garden, then Lily is a rhino.
hypothesis: We believe that brian is a lion, or Bernhard is a swan.
valid_hypothesis: We doubt that brian is a lion, or Bernhard is a swan.
invalid_hypothesis: We believe that brian is a lion, or Bernhard is a swan.
hypothesis_assertion: Brian is a lion, or Bernhard is a swan.