class Vehicle:

def __init__(self, make, model, year):

self.make = make

self.model = model

self.year = year

self._started = False

def start(self):

print("Starting engine...")

self._started = True

def stop(self):

print("Stopping engine...")

self._started = False

class Car(Vehicle):

def __init__(self, make, model, year, num_seats):

super().__init__(make, model, year)

self.num_seats = num_seats

def drive(self):

print(f'Driving my "{self.make} - {self.model}" on the road')

def __str__(self):

return f'"{self.make} - {self.model}" has {self.num_seats} seats'

class Motorcycle(Vehicle):

def __init__(self, make, model, year, num_wheels):

super().__init__(make, model, year)

self.num_wheels = num_wheels

def drive(self):

print(f'Riding my "{self.make} - {self.model}" on the road')

def __str__(self):

return f'"{self.make} - {self.model}" has {self.num_wheels} wheels'