The cat sees the tiger. The squirrel chases the tiger. The tiger chases the squirrel. If someone sees the squirrel then the squirrel sees the cat. If someone sees the cat and the cat sees the tiger then they chase the squirrel.
The squirrel does not chase the squirrel.
@0: The cat sees the tiger.[(triple1)] The squirrel chases the tiger.[(triple2)] The tiger chases the squirrel.[(triple3)]