10 UMLClass 230 130 240 120 FLIGHT -- number ID1 departure-date ID1 ID2 departure-time ID2 departure-airport ID2 total-passengers bg=#dddddd UMLClass 640 150 160 70 AIRPLANE -- number ID airlines bg=#dddddd Relation 460 160 200 50 lt=- m1=* r1= m2= Uses > 10.0;20.0;180.0;20.0