context: Chances are about even that Bernhard is yellow. It is certain that Sandra left the apple. Chances are about even that Brian is gray. We believe that if either Sandra left the apple, or Bernhard is yellow, then Fred discarded the milk. It is unlikely that if Sandra left the apple, or Brian is gray, then John moved to the office. It is highly unlikely that if either Sandra left the apple, or Bernhard is yellow, then Bill is in the school.
hypothesis: It is highly likely that fred discarded the milk, or Bernhard is yellow.
valid_hypothesis: It is highly likely that fred discarded the milk, or Bernhard is yellow.
invalid_hypothesis: It is highly unlikely that fred discarded the milk, or Bernhard is yellow.
hypothesis_assertion: Fred discarded the milk, or Bernhard is yellow.