 Complete the following phrase:  On May 3, 2000, Abu Sayyaf guerrillas occupied the Malaysian dive resort island Sipadan and took 21 hostages, including 10 tourists and 11 resort workers  19 foreign nationals in total. The hostages were taken to an Abu Sayyaf base in Jolo. Two Muslim Malaysians were released soon after. Abu Sayyaf made various demands for the release of several prisoners, including 