There is a better than even chance that Mary moved to the office. It is impossible that Julius is gray. It is probably not the case that Winona is a mouse. It is improbable that if Julius is gray, or Winona is a mouse, then Lily is a lion. It is unlikely that if Julius is gray, or Mary moved to the office, then John took the football. There is a very good chance that if Julius is gray, or Mary moved to the office, then Fred went to the hallway.
It is certain that either Julius is gray, or Fred went to the hallway.
Chances are about even that either Julius is gray, or Fred went to the hallway.
It is certain that either Julius is gray, or Fred went to the hallway.
Either Julius is gray, or Fred went to the hallway.