public function go()
{
$ship = new Transport();
$ship->type_of_transport("water");
$ship->engine_type("steam-turbine");
$ship->move();
}
public function go()
{
$bike = new Transport();
$bike->type_of_transport("ground");
$bike->engine_type("electric motor");
$bike->move();
}
public function go()
{
$train = new Transport();
$train->type_of_transport("ground");
$train->engine_type("diesel engine");
$train->move();
}
public function go()
{
$car = new Transport();
$car->type_of_transport("ground");
$car->engine_type("combustion engine");
$car->move();
}
public function go()
{
$plane = new Transport();
$plane->type_of_transport("air");
$plane->engine_type("jet engine");
$plane->move();
}