context: We believe that Greg is a swan. There is little chance that Sumit is thirsty. It is unlikely that Julius is green.
hypothesis: It is probable that either Greg is a swan, or Julius is green.
valid_hypothesis: It is probable that either Greg is a swan, or Julius is green.
invalid_hypothesis: There is little chance that either Greg is a swan, or Julius is green.
hypothesis_assertion: Either Greg is a swan, or Julius is green.