CREATE TABLE table_46798 ("Reserve" CLOB, "District" CLOB, "IUCN" CLOB, "Co-management" CLOB, "Est." FLOAT, "Description" CLOB)

What is the IUNC of district of Cayo and reserve of Actun Tunichil Muknal?
SELECT "IUCN" FROM table_46798 WHERE "District" = 'cayo' AND "Reserve" = 'actun tunichil muknal'
SELECT "IUCN" FROM "table_46798" WHERE "District" = 'cayo' AND "Reserve" = 'actun tunichil muknal'