For example, say John was in a terrible accident and had his hand was severed, he has his hand replaced by a donor hand that comes from James.
Normally, in the English Language, we could consider James's hand an Inalienable Possession, even if the hand is donated it still originated from James and could not have existed without him.
However, when the hand is attached to John, it is incredibly likely that within a matter of months people would happily refer to it as "John's hand", even though it is still James's.
In this case, is the hand owned by two people?
(I'm not sure what tag to put this under, so if anyone could help that would be great!)