context: There is little chance that Bernhard is white. There is a very good chance that Gertrude is a wolf. It is unlikely that Lily is a swan. It is impossible that if Bernhard is white, or Lily is a swan, then Greg is green. There is little chance that if Bernhard is white, and Gertrude is a wolf, then Julius is a lion. There is almost no chance that if Lily is a swan, or Bernhard is white, then Mary went to the office.
hypothesis: It is impossible that gertrude is a wolf, and Julius is a lion.
valid_hypothesis: It is impossible that gertrude is a wolf, and Julius is a lion.
invalid_hypothesis: Chances are about even that gertrude is a wolf, and Julius is a lion.
hypothesis_assertion: Gertrude is a wolf, and Julius is a lion.