It is probable that Greg is a frog. There is almost no chance that Sumit is tired. Chances are slight that Mary went to the office.
We doubt that greg is a frog, or Sumit is tired.
It is probable that greg is a frog, or Sumit is tired.
We doubt that greg is a frog, or Sumit is tired.
Greg is a frog, or Sumit is tired.