context: There is a very good chance that Lily is green. It is probably the case that John moved to the office. It is likely that Brian is a rhino. It is probably the case that if either John moved to the office, or Lily is green, then Julius is gray. It is certain that if Lily is green, and John moved to the office, then Bernhard is a lion. It is probably the case that if Brian is a rhino, or Lily is green, then Sandra got the milk.
hypothesis: It is certain that either Brian is a rhino, or Sandra got the milk.
valid_hypothesis: Chances are about even that either Brian is a rhino, or Sandra got the milk.
invalid_hypothesis: It is certain that either Brian is a rhino, or Sandra got the milk.
hypothesis_assertion: Either Brian is a rhino, or Sandra got the milk.