The cow is blue. The dog needs the cow. The rabbit sees the dog. If the cow sees the rabbit and the rabbit needs the dog then the rabbit sees the dog. If something needs the cow and the cow chases the rabbit then it needs the rabbit. If something chases the dog then it chases the rabbit.
The cow does not need the rabbit.
@0: The cow is blue.[(triple1)] The dog needs the cow.[(triple2)] The rabbit sees the dog.[(triple3)]