Object subclass: #Animal
  instanceVariableNames: ' ' "* space separated list of names *"
  classVariableNames: ' '
  poolDictionaries: ' '
  category: ' ' !

"* declare methods here, separated with '!' *"
"* !Animal methodsFor: 'a category'! *"
"* methodName *"
"*    method body! !"

!Animal subclass: #Dog
   "* etc. *" !

!Animal subclass: #Cat
  "* etc. *" !

!Dog subclass: #Lab
  "* etc. *" !

!Dog subclass: #Collie
  "* etc. *" !