context: It is highly likely that Julius is a swan. It is highly likely that Mary moved to the garden. It is highly likely that Daniel left the football.
hypothesis: It is likely that either Julius is a swan, or Daniel left the football.
valid_hypothesis: We doubt that either Julius is a swan, or Daniel left the football.
invalid_hypothesis: It is likely that either Julius is a swan, or Daniel left the football.
hypothesis_assertion: Either Julius is a swan, or Daniel left the football.