context: Chances are about even that Bill went to the bedroom. It is likely that Brian is gray. It is impossible that Greg is a lion. It is probable that if either Greg is a lion, or Bill went to the bedroom, then Mary is in the office. It is improbable that if Brian is gray, and Greg is a lion, then Lily is white. We doubt that if Brian is gray, or Bill went to the bedroom, then Julius is green.
hypothesis: It is almost certain that greg is a lion, and Mary is in the office.
valid_hypothesis: It is impossible that greg is a lion, and Mary is in the office.
invalid_hypothesis: It is almost certain that greg is a lion, and Mary is in the office.
hypothesis_assertion: Greg is a lion, and Mary is in the office.