Just add sentences and to get a diagram.
The following was generated for relations typical within an NMS (Network Management System)..
The sentences used to build were…
WebNMS manages ManagedObjects
NetworkElements are ManagedObjects
Interfaces are ManagedObjects
Switches are NetworkElements
Routers are NetworkElements
NetworkElements contain one or more Interfaces
Printers are NetworkElements
WebNMS communicates using Protocol
SNMP is a Protocol
WMI is a Protocol
JMX is a Protocol
NetworkElements may run Services
Services are ManagedObjects
NetworkElements support Protocol
Good tool, this diagrammr !!