static {
  names = new HashMap<String, Entry>();
  labels = new HashMap<String, Set<Entry>>();
  add("Person A", "12223330000", "Rua dos Nerds, 0", "A nerd",
      new GregorianCalendar(1983, 1, 7));
  add("Person B", "28934792839", "Rua dos Belos, 100", "Someone handsome",
      new GregorianCalendar(1982, 11, 6));
  add("Person C", "61616161616", "Rua dos Doidos, 42", "Someone mad",
      new GregorianCalendar(1990, 1, 30));
  try {
    addLabel("Person A", "work");
    addLabel("Person B", "school");
    addLabel("Person B", "work");
    removeLabel("Person A", "work");
    addLabel("Person A", "club");
  } catch (NameNotFoundException nnf) {
    nnf.printStackTrace();
  } catch (LabelNotFoundException lnf) {
    lnf.printStackTrace();
  }
}