CREATE TABLE table_22914 ("Fiscal year" FLOAT, "2-car sets" FLOAT, "3-car sets" FLOAT, "4-car sets" FLOAT, "6-car sets" FLOAT, "8-car sets" FLOAT, "Total vehicles" FLOAT)

Name the 4 car sets for 6 car sets being 44
SELECT MIN("4-car sets") FROM table_22914 WHERE "6-car sets" = '44'
SELECT MIN("4-car sets") FROM "table_22914" WHERE "6-car sets" = '44'