10 UMLClass 100 50 220 110 EQUIPMENT -- serialnum ID1 name installation-date bldg# FK1 room# FK1 bg=#dddddd UMLClass 480 50 140 80 ROOM -- bldg# ID1 room# ID1 area bg=#dddddd Relation 310 70 190 50 lt=- m1=* r1= m2= Is-located-in > 10.0;20.0;170.0;20.0