ModelContext propertiesModelContext = new ModelContext(modelContext);
Properties properties = concept.getProperties();
propertiesModelContext.setEntities(properties);
ViewContext propertiesViewContext = new ViewContext(viewContext);
propertiesViewContext.setWicketId("propertyListPanel");
PropertyListPanel propertyListPanel = new PropertyListPanel(
propertiesModelContext, propertiesViewContext);
item.add(propertyListPanel);
ModelContext neighborsModelContext = new ModelContext(modelContext);
Neighbors neighbors = concept.getNeighbors();