alien_color = 'red'
if alien_color == 'green':
    print("That alien was green. You just earned 5 points!")
elif alien_color == 'yellow':
    print("That alien was yellow. You just earned 10 points!")
elif alien_color == 'red':
    print("That alien was red. You just earned 15 points!")
else:
    print("There is no else because the alien is always defined.")