context: We doubt that Bill left the milk. There is little chance that Brian is white. It is certain that Jessica is a sheep.
hypothesis: It is highly unlikely that brian is white, or Jessica is a sheep.
valid_hypothesis: It is certain that brian is white, or Jessica is a sheep.
invalid_hypothesis: It is highly unlikely that brian is white, or Jessica is a sheep.
hypothesis_assertion: Brian is white, or Jessica is a sheep.