context: There is almost no chance that Fred dropped the apple. There is a better than even chance that Bernhard is green. It is probably not the case that Lily is gray. It is probably the case that if either Bernhard is green, or Fred dropped the apple, then John went to the garden. There is almost no chance that if either Fred dropped the apple, or Lily is gray, then Brian is a lion. It is highly unlikely that if Bernhard is green, and Lily is gray, then Mary got the milk.
hypothesis: Chances are about even that john went to the garden, or Brian is a lion.
valid_hypothesis: Chances are about even that john went to the garden, or Brian is a lion.
invalid_hypothesis: It is certain that john went to the garden, or Brian is a lion.
hypothesis_assertion: John went to the garden, or Brian is a lion.