10 UMLClass 300 30 160 90 STUDENT -- s# ID1 first-name last-name dob bg=#dddddd Relation 300 110 80 100 lt=<<- bg=#dddddd 60.0;10.0;10.0;80.0 Relation 390 110 80 100 lt=<<- bg=#dddddd 10.0;10.0;60.0;80.0 UMLClass 170 190 190 50 POSTGRADUATE-STUDENT -- thesis bg=#dddddd UMLClass 410 190 200 50 UNDERGRADUATE-STUDENT -- project bg=#dddddd