You are, to say the least, presumptive in deeming her PVS - as have demonstrably been others.
She is cognitive. And if there is doubt - then it is only right and proper to error on the side of life and Faith.
You are free to ensure that your standards are eminently applied to yourself - yourself - down the road.
Terri is NOT cognitive and does have PVS. Are you unaware that her parents admitted under oath that she is PVS? They say something very different for the television cameras than they do under oath.