public Train(Locomotive locomotive, List <Wagon> wagons) : this()
{
Locomotive = locomotive;
Wagons.AddRange(wagons);
}
public Station(string name, IEnumerable <Wagon> wagons, IEnumerable <Locomotive> locomotives) : this()
{
Name = name;
Wagons.AddRange(wagons);
Locomotives.AddRange(locomotives);
}