context: It is unlikely that Sandra left the apple. Chances are about even that Greg is a swan. It is probably the case that Lily is a lion. It is probably not the case that if either Sandra left the apple, or Greg is a swan, then Bernhard is green. It is unlikely that if either Greg is a swan, or Lily is a lion, then Julie is in the kitchen. It is certain that if Lily is a lion, or Sandra left the apple, then Fred went to the hallway.
hypothesis: It is almost certain that lily is a lion, and Bernhard is green.
valid_hypothesis: There is little chance that lily is a lion, and Bernhard is green.
invalid_hypothesis: It is almost certain that lily is a lion, and Bernhard is green.
hypothesis_assertion: Lily is a lion, and Bernhard is green.