A tan dog chases a black and white soccer ball.
A dog is at the park with it's owner.
A dog chasing a ball does not imply it is at the park with its owner.
Dog may not be at the park and not with its owner.
A dog can be in many places other than at a park, and a dog may be with its it's[sic] owner or it may not be with its owner or it may not have an owner.