!747
!multi-line strings

m {
  !include #1001509 // rules & statements
  
  static class MentalNode {
    S id = "?" + makeRandomID(8);
    
    new L<S> names; // first name is normally used
    new L<MentalNode> isA;
    
    S getName() {
      ret names.isEmpty() ? id : names.get(0);
    }
  }
  
  static S anonymous() {
    ret "?" + makeRandomID(6);
  }
  
  static new L<MentalNode> nodes;
  
  p {
    MentalNode computer = newNode("computer", "computer (the concept)");
    MentalNode notebook = newNode("teubizvjbppd", "my notebook");
    notebook.isA.add(computer);
    MentalNode server = newNode("onxytkatvevr", "my server");
    server.isA.add(computer);
    
    print("Nodes:");
    print(indent(2, structureList(nodes)));
  }
  
  // show structure of a list in multiple lines
  static S structureList(L l) {
    new L<S> bla;
    for (O x : l) bla.add(structure(x));
    ret fromLines(bla);
  }
  
  static MentalNode newNode(S... names) {
    new MentalNode n;
    n.names.addAll(asList(names));
    nodes.add(n);
    ret n;
  }
}