CREATE TABLE table_13543 ("Class" CLOB, "Wheel arrangement" CLOB, "Fleet number ( s ) " CLOB, "Manufacturer" CLOB, "Year made" CLOB, "Quantity made" CLOB, "Quantity preserved" CLOB)

What wheel arrangement has a fleet number(s) of 45 46?
SELECT "Wheel arrangement" FROM table_13543 WHERE "Fleet number(s)" = '45–46'
SELECT "Wheel arrangement" FROM "table_13543" WHERE "Fleet number(s)" = '45–46'