a brown dog coming out of an orange and yellow tunnel
A stray dog walking out of the subway tunnel.
The dog coming out of the tunnel may not be a stray and the tunnel may not be part of a subway system.
Not all dogs are stray dogs. Not all tunnels are subway tunnels.
We have no idea if the dog is stray, it could be any dog. We have no idea the tunnel is a subway tunnel, there are many tunnels it could be.