Table:
text: PAL Express destinations
Philippine Airlines
Philippine Airlines
City Country IATA ICAO Airport
Puerto Princesa Philippines PPS RPVP Puerto Princesa International Airport
Roxas Philippines RXS RPVP Roxas Airport
Shanghai China PVG ZSPD Shanghai Pudong International Airport
Singapore Singapore SIN WSSS Singapore Changi Airport
Surigao Philippines SUG RPMS Surigao Airport
Tacloban Philippines TAC RPVA Daniel Z. Romualdez Airport
Tagbilaran Philippines TAG RPVT Tagbilaran Airport
Tawi-Tawi Philippines SGS RPMN Sanga-Sanga Airport
Tuguegarao Philippines TUG RPUT Tuguegarao Airport
Zamboanga Philippines ZAM RPMZ Zamboanga International Airport

Question: What is country if city is "Zamboanga" for PAL Express destinations?