using System;

public class Program

{

    public static void Main()

    {

        Dog myDog = new Dog("Howdy");

        Console.WriteLine(myDog.attributes);

    }

}

​

public abstract class Entity {

    public string attributes { get; set; }

    public void log() {

        Console.WriteLine(this.attributes);

    }

}

​

public class Dog : Entity {

    public Dog(string attributes) {

        this.attributes = attributes;

    }

}