The bear needs the squirrel. The rabbit does not chase the bear. The squirrel chases the bear. If someone does not need the bear then they see the squirrel. If someone chases the rabbit then they do not need the squirrel. If someone sees the squirrel then they see the bear. If someone sees the bear then the bear chases the squirrel. If someone needs the squirrel then the squirrel does not need the bear. If the squirrel is young and the squirrel sees the rabbit then the squirrel chases the rabbit.
The rabbit chases the bear.