context: We doubt that Lily is green. It is certain that John dropped the apple. There is a better than even chance that Brian is gray. It is probably not the case that if John dropped the apple, or Brian is gray, then Greg is a swan. It is probably not the case that if Brian is gray, or Lily is green, then Julius is yellow. It is probable that if either Brian is gray, or Lily is green, then Mary moved to the office.
hypothesis: It is certain that john dropped the apple, or Julius is yellow.
valid_hypothesis: It is certain that john dropped the apple, or Julius is yellow.
invalid_hypothesis: It is probably not the case that john dropped the apple, or Julius is yellow.
hypothesis_assertion: John dropped the apple, or Julius is yellow.