10 UMLClass 80 100 170 100 STUDENT -- snumber ID first-name last-name degree bg=#dddddd UMLClass 460 100 150 80 BOOK -- ISBN ID title publisher bg=#dddddd Relation 240 130 240 50 lt=- m1=* r1= m2=* Borrow > 10.0;20.0;220.0;20.0 Relation 340 140 30 120 lt=. 10.0;100.0;10.0;10.0 UMLClass 290 240 140 50 BORROWING -- call-number ID bg=#dddddd