capitals = {
    'canada': "Ottawa",
    'nigeria': "Abuja",
    'america': "Washington D.C",
    'united Kingdom': "London"
}

class Address:
    def __init__(self, country):
        self.country = country

    def get_capital(self):
        return capitals.get(self.country, "Capital not found")
			
address = Address('canada')
print(address.get_capital())