class Animal():
    color = None
    weight = None
    size = None
    length = None
    texture = None
    sound = None
    warm_blooded = None # true or false value, which is a boolean

class Mammal(Animal):
    amount_of_fur

    def __init__(self):
        self.warm_blooded = True
    
    def eat(self, food):
        pass

class Human(Mammal):
    hair
    language
    occupation
    crying # true or false
    def __init__(self):
        crying = True

    def speak(self, words, other_person):
        pass


ben = Human()
dalia = Human()
ben.speak("hello", dalia)

class Dog(Mammal):
    tail
    fur 
    bark
    def __init__(self):
        bark = True
    
    def bark(self, sounds, other_dog):
        pass

class Cat(Mammal):
    whiskers
    fur 
    meow
    def __init__(self):
        meow = True
    
    def meow(self, sounds, other_cat):
        pass

class Tiger(Cat):
    stripes
    roar



dalia_cat = Cat()




    