#----------------------------------------------------------
#                             -------------
#                             |   Zoo     |
#                             -------------
#                                  |
#                                  |  HASA Animal
#                                  v
#                             -------------
#                             |  Animal   |
#                             -------------
#                                 ^^
#                                /  \
#                     ISA Animal/    \ ISA Animal
#                              /      \
#                             /        \
#                   -------------      -------------
#                   |    Camel  |      |    Lama   |
#                   -------------      -------------
#----------------------------------------------------------