The dog needs the mouse. The mouse is young. If someone sees the dog then the dog is young. If someone visits the mouse then they do not visit the dog. If the dog needs the mouse and the mouse is young then the mouse needs the dog. If someone is young then they see the dog. If the mouse visits the dog and someone does not visit the mouse then they are cold. If the dog sees the mouse and the mouse does not visit the dog then the dog does not need the mouse.
The dog visits the mouse.