using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;

namespace CompanyUsers
{
    class Program
    {
        public static void Main()
        {
            var usersByCompany = new Dictionary<string, List<string>>();
            //var idsBy = new Dictionary<string,>();

            while (true)
            {
                string[] tokens = Console.ReadLine().Split("-> ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);

                if (tokens[0] == "End")
                {
                    break;
                }

                string companyName = tokens[0];
                string employeeId = tokens[1];

                if (usersByCompany.ContainsKey(companyName) == false)
                {
                    usersByCompany.Add(companyName, new List<string>());
                }

                if (usersByCompany[companyName].Contains(employeeId) == false) // pf... it was that simple...
                {
                    usersByCompany[companyName].Add(employeeId);
                }
            }

            foreach (var kvp in usersByCompany.OrderBy(c => c.Key))
            {
                Console.WriteLine(kvp.Key);
                kvp.Value.ForEach(x => Console.WriteLine("-- {0}", x));
            }
        }
    }
} // . yooooooooooooooooooooooooooo