The dog is round. The squirrel visits the dog. If something is round then it chases the squirrel. If the dog is round and the dog is big then the dog eats the squirrel. If something visits the dog then the dog is young. If something eats the squirrel then the squirrel is young. If something chases the squirrel and it is round then the squirrel chases the dog. If something visits the dog and it visits the squirrel then it chases the squirrel.
The squirrel does not chase the squirrel.