context: It is improbable that Lily is a swan. Chances are about even that John went to the kitchen. We doubt that Julius is gray.
hypothesis: It is probably not the case that lily is a swan, or Julius is gray.
valid_hypothesis: It is probably not the case that lily is a swan, or Julius is gray.
invalid_hypothesis: It is probably the case that lily is a swan, or Julius is gray.
hypothesis_assertion: Lily is a swan, or Julius is gray.