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

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

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

[tuna] [isa] [fish] [.] 

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

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

[wing] [has] [feather] [.] 

[wing] [isa] [extremity] [.] 

[herring] [isa] [fish] [.] 

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

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

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