alien_colour = 'green'

if alien_colour == 'green':
    print('You just earned 5 points')
elif alien_colour == 'yellow':
    print('You just earned 10 points')
elif alien_colour == 'red':
    print('You just earned 15 points')

alien_colour = 'yellow'

if alien_colour == 'green':
    print('You just earned 5 points')
elif alien_colour == 'yellow':
    print('You just earned 10 points')
elif alien_colour == 'yed':
    print('You just earned 15 points')

alien_colour = 'red'

if alien_colour == 'green':
    print('You just earned 5 points')
elif alien_colour == 'yellow':
    print('You just earned 10 points')
elif alien_colour == 'red':
    print('You just earned 15 points')