Dog

to goat
  circle 50
  fd 90
  rt 90
  fd 90
  rt 90
  fd 90
  rt 90
  fd 90
  rt 90
  rt 90
  rt 80
  rt 90
  rt 90
  rt 90
  fd 90
  rt 90
  rt 90
end

to cow
  repeat 8 [ goat ]
end

to dog
  repeat 3 [ cow ]
end

dog