CREATE TABLE table_56826 ("Chemical class" TEXT, "Group" TEXT, "Formula" TEXT, "Prefix" TEXT, "Suffix" TEXT)

Which item has the suffix containing thiocyanato- (-scn) as a prefix?
SELECT "Suffix" FROM table_56826 WHERE "Prefix" = 'thiocyanato- (-scn)'
SELECT "Suffix" FROM "table_56826" WHERE "Prefix" = 'thiocyanato- (-scn)'