我对类中的继承不熟悉，由于某种原因，这段代码中的属性似乎没有正确共享。我不确定是什么问题。

class Person:
    def __init__(self, name, age, occupation):
      self.name = name
      self.age = age
      self.occupation = occupation
  
    def say_hello(self):
      print(f"Hello, my name is {self.name}.")
  
    def say_age(self):
      print(f"I am {self.age} years old.")
    
class Superhero(Person):
    def __init__(self, name, age, occupation, secret_identity, nemesis):
      self.secret_identity = secret_identity
      self.nemesis = nemesis

hero = Superhero("Spider-Man", 17, "student", "Peter Parker", "Green Goblin")
print(hero.name())