PSSD agreement with PSSR

NounPoss-18: If any head-marking construction is used (PSSD or PSSR and PSSD), does the possessed noun contain any agreement with the possessor?

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