AN ORDINANCE AMENDING SECTION 5 OF THE ZONING PLAN COMPRISING PORTIONS OF THE DISTRICT OF SAMPALOC, UNDER SECTION 2 OF ORDINANCE NO. 2830, OTHERWISE KNOWN AS THE ZONIFICATION ORDINANCE, AS AMENDED, BY CONVERTING THAT BLOCK BOUNDED BY G. TUAZON, MASBATE, LUZON, AND LOUISA STREETS IN SAMPALOC, FROM "RESIDENTIAL" TO "COMMERCIAL".