The bear chases the mouse. The bear is cold. The bear is nice. The bear needs the squirrel. The bear visits the mouse. The bear visits the squirrel. The mouse chases the bear. The mouse is blue. The mouse needs the squirrel. The squirrel chases the bear. The squirrel is nice. The squirrel needs the mouse. All nice people are young. If the squirrel is young and the squirrel chases the mouse then the mouse needs the squirrel.
The squirrel does not need the bear.