```python class Eye: def __init__(self, color): self.color = color class Mother(Eye): def __init__(self, color): super().__init__(color) class Father(Eye): def __init__(self, color): super().__init__(color) class Child(Eye): def __init__(self, mom: Mother, dad: Father): result = "blue" if "brown" in [mom.color, dad.color]: result = "brown" super().__init__(result) mom = Mother("blue") dad = Father("blue") kid = Child(mom, dad) ```