10 UMLClass 100 70 170 80 BUILDING -- bnumber ID1 name[0..1] floors bg=#dddddd UMLClass 440 70 120 60 ROOM -- rnumber ??? area bg=#dddddd Relation 260 80 200 50 lt=- m1= r1= m2=1..* Consists-of > 10.0;20.0;180.0;20.0