We doubt that Sumit is thirsty. Chances are about even that Mary got the football. There is almost no chance that Julius is a rhino. Chances are about even that if Mary got the football, or Sumit is thirsty, then Greg is gray. It is improbable that if Sumit is thirsty, and Julius is a rhino, then John went to the hallway. It is probably the case that if Julius is a rhino, and Mary got the football, then Brian is a lion.
Chances are about even that greg is gray, or Sumit is thirsty.
Chances are about even that greg is gray, or Sumit is thirsty.
It is certain that greg is gray, or Sumit is thirsty.
Greg is gray, or Sumit is thirsty.