What PRR class has a Wheel arrangement of a1a-a1a?
CREATE TABLE table_name_33 (prr_class VARCHAR, wheel_arrangement VARCHAR)
SELECT prr_class FROM table_name_33 WHERE wheel_arrangement = "a1a-a1a"
### Context: CREATE TABLE table_name_33 (prr_class VARCHAR, wheel_arrangement VARCHAR) ### Question: What PRR class has a Wheel arrangement of a1a-a1a? ### Answer: SELECT prr_class FROM table_name_33 WHERE wheel_arrangement = "a1a-a1a"