context: Chances are slight that Greg is gray. It is probably not the case that Lily is a swan. There is almost no chance that John went to the office.
hypothesis: It is improbable that either John went to the office, or Greg is gray.
valid_hypothesis: It is improbable that either John went to the office, or Greg is gray.
invalid_hypothesis: It is highly likely that either John went to the office, or Greg is gray.
hypothesis_assertion: Either John went to the office, or Greg is gray.