context: It is almost certain that Lily is yellow. There is little chance that Greg is green. It is probably the case that Winona is a wolf. It is impossible that if Winona is a wolf, or Greg is green, then Brian is white. There is a very good chance that if Lily is yellow, and Winona is a wolf, then John went to the office. It is certain that if either Greg is green, or Winona is a wolf, then Mary is in the garden.
hypothesis: It is impossible that lily is yellow, and Brian is white.
valid_hypothesis: It is impossible that lily is yellow, and Brian is white.
invalid_hypothesis: It is highly likely that lily is yellow, and Brian is white.
hypothesis_assertion: Lily is yellow, and Brian is white.