Ratification of Donation Agreement between the Institution “Public Benefit Institution Stavros S. Niarhos”, of the Hellenic Public Sector, of Legal Entity of Public Law, with the registered name “National Library of Greece”, of Legal Entity of Private Law, with the registered name “National Opera House”, of the S.A with the registered name “Olympic Property” and of the S.A with the registered name “Land Property Company of the Public Sector” and regulation of matters relative to the materialization of the hyper-regional cultural park with the registered name “Center of Culture of the Institution Stavros Niarhos”.