The bear does not eat the cow. The bear does not eat the mouse. The cow needs the bear. The dog eats the mouse. The dog is red. The mouse is kind. The mouse does not need the dog. If the bear is not red then the bear needs the cow. If something does not need the dog then the dog does not need the bear. If something eats the cow and the cow chases the dog then the dog is nice. If something needs the mouse and it eats the dog then the dog needs the mouse. If the mouse is nice then the mouse chases the dog. If something eats the dog then the dog eats the cow. If something needs the cow and it does not chase the dog then it eats the dog. If something does not eat the bear and it does not eat the dog then the dog needs the mouse.
The bear needs the cow.