context: It is improbable that Julius is yellow. It is probably the case that Greg is a swan. There is a very good chance that Mary got the apple.
hypothesis: It is highly unlikely that either Julius is yellow, or Mary got the apple.
valid_hypothesis: We believe that either Julius is yellow, or Mary got the apple.
invalid_hypothesis: It is highly unlikely that either Julius is yellow, or Mary got the apple.
hypothesis_assertion: Either Julius is yellow, or Mary got the apple.