class Dog:
  def __init__(self,race):
    self.race = race
  def info(self, name, age, sex, color):
    print ("%s is a %s year old %s dog. He is a %s %s."%(name, age, sex, color, self.race))
  def bark(self):
    print ("Wooow!")

D = Dog('Labrador')
D.info('Milo', 4, "male", "chocolat")
print ("Milo confirms in saying:")
Dog.bark("")