AMENDING PROCLAMATION NO. 936 DATED AUGUST 11, 1997, WHICH RESERVED CERTAIN PARCELS OF LAND OF THE PUBLIC DOMAIN LOCATED IN THE CITY OF OLONGAPO, ISLAND OF LUZON FOR THE USE OF THE CITY OF OLONGAPO BY GRANTING OWNERSHIP OVER THE PARCELS OF LAND RESERVED FOR ITS USE EXCEPT THOSE PORTIONS RESERVED AND BEING UTILIZED FOR SCHOOL SITE PURPOSES