context: It is highly unlikely that John went to the garden. There is little chance that Mary dropped the milk. There is a better than even chance that Brian is a swan.
hypothesis: There is little chance that brian is a swan, or Mary dropped the milk.
valid_hypothesis: There is a better than even chance that brian is a swan, or Mary dropped the milk.
invalid_hypothesis: There is little chance that brian is a swan, or Mary dropped the milk.
hypothesis_assertion: Brian is a swan, or Mary dropped the milk.