public BetaAlien(string name, long age, bool isGood) { alien = new Alien(name, "red", age, isGood); }
public AlphaAlien(string name, long age, bool isGood) { alien = new Alien(name, "blue", age, isGood); }
public GammaAlien(string name, long age, bool isGood) { alien = new Alien(name, "green", age, isGood); }