context: There is a very good chance that Greg is yellow. It is probable that John went to the garden. There is almost no chance that Julius is a swan.
hypothesis: There is almost no chance that julius is a swan, and John went to the garden.
valid_hypothesis: There is almost no chance that julius is a swan, and John went to the garden.
invalid_hypothesis: There is a better than even chance that julius is a swan, and John went to the garden.
hypothesis_assertion: Julius is a swan, and John went to the garden.