context: It is probably the case that Brian is white. There is little chance that Mary went to the garden. There is a better than even chance that Sandra got the apple.
hypothesis: We doubt that either Mary went to the garden, or Brian is white.
valid_hypothesis: It is probably the case that either Mary went to the garden, or Brian is white.
invalid_hypothesis: We doubt that either Mary went to the garden, or Brian is white.
hypothesis_assertion: Either Mary went to the garden, or Brian is white.