context: It is likely that Greg is a frog. There is a better than even chance that Julius is a swan. It is highly likely that Daniel put down the milk.
hypothesis: Chances are about even that julius is a swan, and Daniel put down the milk.
valid_hypothesis: Chances are about even that julius is a swan, and Daniel put down the milk.
invalid_hypothesis: It is impossible that julius is a swan, and Daniel put down the milk.
hypothesis_assertion: Julius is a swan, and Daniel put down the milk.