The dog chases the mouse. The dog is blue. The dog is cold. The dog is rough. The dog is round. The dog needs the mouse. The dog sees the mouse. The mouse chases the dog. The mouse is blue. The mouse is cold. The mouse is nice. The mouse is rough. The mouse is round. The mouse needs the dog. The mouse sees the dog. If something needs the dog and the dog is blue then it sees the mouse.
The mouse does not see the mouse.