gbtk.addNode(n1);
gbtk.addNode(n2);
gbtk.addNode(n3);
gbtk.addNode(n4);
ObjectPropertyLink e1 = new ObjectPropertyLink("e1", new Label("http://erlangen-crm.org/current/P104i_applies_to"), ObjectPropertyType.Direct);
ObjectPropertyLink e2 = new ObjectPropertyLink("e2", new Label("http://erlangen-crm.org/current/P105i_has_right_on"), ObjectPropertyType.Direct);
ObjectPropertyLink e3 = new ObjectPropertyLink("e3", new Label("http://erlangen-crm.org/current/P31_has_modified"), ObjectPropertyType.Direct);
ObjectPropertyLink e4 = new ObjectPropertyLink("e4", new Label("http://erlangen-crm.org/current/P106i_forms_part_of"), ObjectPropertyType.Direct);
ObjectPropertyLink e5 = new ObjectPropertyLink("e5", new Label("http://erlangen-crm.org/current/P92_brought_into_existence"), ObjectPropertyType.Direct);
ObjectPropertyLink e6 = new ObjectPropertyLink("e6", new Label("http://erlangen-crm.org/current/P108_has_produced"), ObjectPropertyType.Direct);
gbtk.addLink(n1, n2, e1, 0.6);
gbtk.addLink(n1, n4, e2, 0.9);
gbtk.addLink(n1, n3, e3, 0.2);
gbtk.addLink(n2, n3, e4, 0.7);