Specifically, the adjectivizing suffix and the possessive D are crucially different in that the latter, which is semantically transparent as in (25)a below, can undergo type-shifting so that it can accommodate non-relational possessees, while the former cannot.
when a possessee is a non-relational noun, the type-shifting operator in (25)b kicks in, thereby allowing the possessee to be in a free, pragmatically controlled relation with the possessor (Barker, 1995; As a result, both relational and non-relational nouns can appear as a possessee in possessive DPs, as shown in (26) and (27), respectively.