context: It is probable that Yann is tired. There is a better than even chance that Julius is a swan. There is almost no chance that Sandra got the football.
hypothesis: It is certain that julius is a swan, and Sandra got the football.
valid_hypothesis: There is almost no chance that julius is a swan, and Sandra got the football.
invalid_hypothesis: It is certain that julius is a swan, and Sandra got the football.
hypothesis_assertion: Julius is a swan, and Sandra got the football.