The bear is cold. The bear needs the squirrel. The bear visits the rabbit. The mouse is big. The mouse is rough. The mouse visits the bear. The rabbit is cold. The rabbit is green. The rabbit is rough. The rabbit is young. The rabbit needs the squirrel. The rabbit visits the mouse. The squirrel is big. The squirrel needs the rabbit. The squirrel sees the mouse. If something needs the mouse and it visits the bear then the bear visits the rabbit. If something visits the squirrel and the squirrel needs the bear then the squirrel needs the mouse. If something visits the rabbit and it sees the mouse then it needs the bear.
The squirrel does not need the mouse.