A gray dog runs along side a pool while a yellow dog jumps into the pool .
We doubt that a gray dog runs along the side of a pool while a yellow dog jumps in the pool outside .
It is almost certain that a gray dog runs along the side of a pool while a yellow dog jumps in the pool outside .
We doubt that a gray dog runs along the side of a pool while a yellow dog jumps in the pool outside .
A gray dog runs along the side of a pool while a yellow dog jumps in the pool outside .