context: It is highly unlikely that Sandra took the milk. We doubt that Bernhard is yellow. Chances are about even that John went to the garden.
hypothesis: It is probably not the case that either Sandra took the milk, or Bernhard is yellow.
valid_hypothesis: It is probably not the case that either Sandra took the milk, or Bernhard is yellow.
invalid_hypothesis: It is highly likely that either Sandra took the milk, or Bernhard is yellow.
hypothesis_assertion: Either Sandra took the milk, or Bernhard is yellow.