context: There is almost no chance that Bernhard is yellow. It is unlikely that Julius is a lion. There is a better than even chance that Mary got the milk. We doubt that if Julius is a lion, or Bernhard is yellow, then Sandra left the milk. There is a very good chance that if Mary got the milk, or Julius is a lion, then Brian is gray. There is almost no chance that if either Mary got the milk, or Bernhard is yellow, then John moved to the garden.
hypothesis: There is little chance that either Mary got the milk, or John moved to the garden.
valid_hypothesis: There is a better than even chance that either Mary got the milk, or John moved to the garden.
invalid_hypothesis: There is little chance that either Mary got the milk, or John moved to the garden.
hypothesis_assertion: Either Mary got the milk, or John moved to the garden.