import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class companyUsers {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner (System.in);
		TreeMap<String, ArrayList<String>> companies = new TreeMap<>();
		String command = sc.nextLine();

		while (!command.equals("End")) {
			String[] tokens = command.split(" -> ");
			String company = tokens[0];
			String id = tokens[1];

			if (!companies.containsKey(company)) {
				companies.put(company, new ArrayList<String>());
			}
			if (companies.containsKey(company) && !companies.get(company).contains(id)) {
			companies.get(company).add(id);
			}
			command = sc.nextLine();
		}
		for (var entry : companies.entrySet()) {
			System.out.println(entry.getKey());
			for (String ids : entry.getValue()) {
			System.out.println("-- "+ ids);
			}
		}
	}
}