instruction: Which classes in the UKRAINE 400 / 500 level have the least amount of work ?
response: SELECT DISTINCT course.department, course.name, course.number, program_course.workload FROM course INNER JOIN program_course WHERE ((course.number < 400 + 100 AND course.number >= 400) OR (course.number < 500 + 100 AND course.number >= 500)) AND course.department = 'UKRAINE' AND program_course.workload = (SELECT MIN(PROGRAM_COURSEalias1.workload) FROM course AS COURSEalias1 INNER JOIN program_course AS PROGRAM_COURSEalias1 WHERE ((COURSEalias1.number < 400 + 100 AND COURSEalias1.number >= 400) OR (COURSEalias1.number < 500 + 100 AND COURSEalias1.number >= 500)) AND COURSEalias1.department = 'UKRAINE')