NEGOTIATED PROCUREMENT FOR THE CONSTRUCTION OF CORE SHELTER WITH SOLAR POWERED LIGHT AND WATER COMPONENT: 1) 100-UNITS IN DATU PIANG; 2) 100-UNITS IN DATU SAUDI AMPATUAN; 3) 50-UNITS IN DATU MONTAWAL; AND 4) 50-UNITS IN SOUTH UPI, PROVINCE OF MAGUINDANAO