tuna has fin . 1 tuna 2 has 2 has 3 fin 3 fin 4 . eagle isa bird . 1 eagle 2 isa 2 isa 3 bird 3 bird 4 . fin isa extremity . 1 fin 2 isa 2 isa 3 extremity 3 extremity 4 . tuna isa fish . 1 tuna 2 isa 2 isa 3 fish 3 fish 4 . fin has scale . 1 fin 2 has 2 has 3 scale 3 scale 4 . eagle has wing . 1 eagle 2 has 2 has 3 wing 3 wing 4 . wing has feather . 1 wing 2 has 2 has 3 feather 3 feather 4 . wing isa extremity . 1 wing 2 isa 2 isa 3 extremity 3 extremity 4 . herring isa fish . 1 herring 2 isa 2 isa 3 fish 3 fish 4 . herring has fin . 1 herring 2 has 2 has 3 fin 3 fin 4 . parrot isa bird . 1 parrot 2 isa 2 isa 3 bird 3 bird 4 . parrot has wing . 1 parrot 2 has 2 has 3 wing 3 wing 4 .