tuna isa fish .
0 ###LEFT-WALL### 1 tuna
1 tuna 2 isa
2 isa 3 fish
3 fish 4 .


herring isa fish .
0 ###LEFT-WALL### 1 herring
1 herring 2 isa
2 isa 3 fish
3 fish 4 .


tuna has fin .
0 ###LEFT-WALL### 1 tuna
1 tuna 2 has
2 has 3 fin
3 fin 4 .


herring has fin .
0 ###LEFT-WALL### 1 herring
1 herring 2 has
2 has 3 fin
3 fin 4 .


parrot isa bird .
0 ###LEFT-WALL### 1 parrot
1 parrot 2 isa
2 isa 3 bird
3 bird 4 .


eagle isa bird .
0 ###LEFT-WALL### 1 eagle
1 eagle 2 isa
2 isa 3 bird
3 bird 4 .


parrot has wing .
0 ###LEFT-WALL### 1 parrot
1 parrot 2 has
2 has 3 wing
3 wing 4 .


eagle has wing .
0 ###LEFT-WALL### 1 eagle
1 eagle 2 has
2 has 3 wing
3 wing 4 .


fin isa extremity .
0 ###LEFT-WALL### 1 fin
1 fin 2 isa
2 isa 3 extremity
3 extremity 4 .


wing isa extremity .
0 ###LEFT-WALL### 1 wing
1 wing 2 isa
2 isa 3 extremity
3 extremity 4 .


fin has scale .
0 ###LEFT-WALL### 1 fin
1 fin 3 scale
2 has 3 scale
3 scale 4 .


wing has feather .
0 ###LEFT-WALL### 1 wing
1 wing 3 feather
2 has 3 feather
3 feather 4 .