Obligatorily possessed with dedicated unpossession

NounPoss-23: If there is at least one obligatorily possessed class, can it be unpossessed via a dedicated (non-person) marker?

This feature is described in the feature set Noun possession classes.

It is authored by David Inman and Natalia Chousou-Polydouri and Balthasar Bickel with Thomas C Huber and André Müller. cite