= 2021-09-22 =

{{{
@startuml
abstract        Animal
interface       Color
interface       Gender
Animal <|--	Pig
Animal <|--	Dog
Animal <|--	Cat
Pig    <|--	Piggy
Dog    <|--     Doggy
Cat    <|--     Kitten
Color  <|..     Cat
Gender <|..     Cat
@enduml
}}}