A °nominal bears a possessed role if it serves to express the controlled object in a °possessive relation.
possessum role (a.k.a. possessed role, possessee role) (SEM) = the object that is controlled by the possessor in a possession relation. Example: in I have a car, the car is the possessum. The possessum may also serve as the head in a possessive modification construction. (Sections 4.1.4, 10.4.2)