CREATE TABLE table_name_98 (fleet_number_s_ VARCHAR, wheel_arrangement VARCHAR, class VARCHAR)

What is Fleet Number(s), when Wheel Arrangement is '2-6-0', and when Class is 'Z'?
SELECT fleet_number_s_ FROM table_name_98 WHERE wheel_arrangement = "2-6-0" AND class = "z"
SELECT "fleet_number_s_" FROM "table_name_98" WHERE "2-6-0" = "wheel_arrangement" AND "class" = "z"