The bear does not need the dog. The dog does not see the squirrel. The squirrel needs the bear. If the squirrel visits the bear then the squirrel does not need the dog. If something sees the bear and it needs the squirrel then the bear is not rough. If something is nice then it is green. If something is round and it visits the bear then the bear visits the squirrel. If something visits the dog then the dog is nice. If something is round and nice then it visits the squirrel. If something needs the bear and the bear does not visit the squirrel then the squirrel sees the bear. If something does not visit the squirrel then the squirrel visits the dog.
The bear needs the dog.