context: It is probably not the case that John went to the bedroom. It is probably not the case that Brian is green. It is likely that Lily is yellow. We believe that if Lily is yellow, and John went to the bedroom, then Gertrude is a mouse. It is highly likely that if Brian is green, and Lily is yellow, then Sandra left the milk. It is certain that if either Brian is green, or Lily is yellow, then Daniel got the milk.
hypothesis: It is certain that either Brian is green, or Sandra left the milk.
valid_hypothesis: It is improbable that either Brian is green, or Sandra left the milk.
invalid_hypothesis: It is certain that either Brian is green, or Sandra left the milk.
hypothesis_assertion: Either Brian is green, or Sandra left the milk.