yathā caitrasya turaṅgama iti caitreṇa svāmyantarebhyo vyavacchidyamānasturaṅgamas tato bhidyate tathāparaḥ prayogaḥ /
Just as in [the expression] "Caitra's horse," the horse being distinguished from [horses belonging to] other owners by [reference to] Caitra is different from him - such is another application [of this logic].