Resource relation = model.createResource(KNOBOT.Relation);
relation.addProperty(KNOBOT.source, topic);
relation.addProperty(KNOBOT.target, item);
relation.addProperty(KNOBOT.strength, model.createTypedLiteral(relevance));
relation.addProperty(KNOBOT.strengthReduction, model.createTypedLiteral(aging));
Literal effectiveDateLiteral = model.createTypedLiteral(new W3CDateFormat()
.format(new Date()), XSDDatatype.XSDdateTime);
relation.addProperty(KNOBOT.effectiveDate, effectiveDateLiteral);
relation.addProperty(RDF.type, KNOBOT.InlineRelation);
RelationManager.addRelation(relation);
Resource user = getCurrentUser();