import java.util.*;

/**
 *
 * @author Usuario
 */
public class P291 {
    Scanner in;

    public boolean caso() {
        int numParrafos = Integer.parseInt(in.nextLine());
        if (numParrafos == 0) {
            return false;
        }
        Map<String, String> m = new TreeMap<>();
        for (int i = 1; i <= numParrafos; i++) {
            String parrafo = in.nextLine().toLowerCase();
            String[] a = parrafo.split(" ");
            for (int j = 0; j < a.length; j++) {
                if (a[j].length() > 2) {
                    if (m.containsKey(a[j]) ) {
                        if (!m.get(a[j]).equals("" + i)) {
                            String lineas = m.get(a[j]) + " " + i;
                            m.put(a[j], lineas);
                        }

                    } else {
                        m.put(a[j], "" + i);
                    }
                }
            }
        }
        for (String p : m.keySet()) {
            System.out.format("%s %s%n", p, m.get(p));
        }
        System.out.println("---");
        return true;
    }

    public void run() {
        in = new Scanner(System.in);
        while (caso());
    }

    public static void main(String[] args) {
        // TODO code application logic here
        new P291().run();
    }
}