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tuna has fin .

  +C06C07+C07C05+C05C03+
  |      |      |      |
tuna    has    fin     .

eagle isa bird .

  +C06C08+C08C02+C02C03+
  |      |      |      |
eagle   isa   bird     .

fin isa extremity .

 +C05C08+C08C02+C02C03+
 |      |      |      |
fin    isa extremity  .

tuna isa fish .

  +C06C08+C08C02+C02C03+
  |      |      |      |
tuna    isa   fish     .

fin has scale .

 +--C05C01--+C01C03+
 |          |      |
fin [has] scale    .

eagle has wing .

  +C06C07+C07C05+C05C03+
  |      |      |      |
eagle   has   wing     .

wing has feather .

  +---C05C04--+C04C03+
  |           |      |
wing [has] feather   .

wing isa extremity .

  +C05C08+C08C02+C02C03+
  |      |      |      |
wing    isa extremity  .

herring isa fish .

   +C06C08+C08C02+C02C03+
   |      |      |      |
herring  isa   fish     .

herring has fin .

   +C06C07+C07C05+C05C03+
   |      |      |      |
herring  has    fin     .

parrot isa bird .

   +C06C08+C08C02+C02C03+
   |      |      |      |
parrot   isa   bird     .

parrot has wing .

   +C06C07+C07C05+C05C03+
   |      |      |      |
parrot   has   wing     .

Bye.