class Ownership:
    def __init__(self):
        self.table_ownership_dict = {}

    def add_table_ownership(self, table_name, uown_names):
        self.table_ownership_dict[table_name] = uown_names

    def get_table_ownership(self, table_name):
        return self.table_ownership_dict.get(table_name, "UnknownTableGroup")