context: We doubt that Bill moved to the garden. It is almost certain that Brian is white. There is little chance that Lily is a lion.
hypothesis: It is probably the case that lily is a lion, and Brian is white.
valid_hypothesis: It is improbable that lily is a lion, and Brian is white.
invalid_hypothesis: It is probably the case that lily is a lion, and Brian is white.
hypothesis_assertion: Lily is a lion, and Brian is white.