The cat sees the squirrel. The dog sees the cat. The squirrel eats the cat. The tiger needs the squirrel. If something sees the dog and it eats the squirrel then the squirrel is red. If the tiger sees the squirrel then the tiger needs the squirrel. If something is green and it needs the squirrel then the squirrel needs the dog.
The tiger sees the squirrel.
@0: The cat sees the squirrel.[(triple1)] The dog sees the cat.[(triple2)] The squirrel eats the cat.[(triple3)] The tiger needs the squirrel.[(triple4)]