main {
  psvm {
    String[] db = toLines(loadTextFile("input/database.txt"));
    MultiMap<String, String> examples = new MultiMap<String, String>();
    for (String s : db) {
      int i = s.indexOf(" is an "), j = s.indexOf(" is a "), k;
      if (i >= 0) k = i+7;
      else if (j >= 0) k = i+6;
      else { System.out.println("Warning"); continue; }
      String a = s.substring(0, i).trim(), b = s.substring(k).trim();
      examples.put(b, a);
    }

    // TODO: lookup entry
  }
}