For example, the SMILES string c1ccccc1 (representing benzene) is equivalent to the DeepSMILES string cccccc6. This indicates that the final carbon is connected to the atom that occurs six positions before it (in the direct path back to the first atom); this implies a six-membered ring. Note that while a phenyl ring in a larger molecule may sometimes occur in SMILES notation as c2ccccc2, c3ccccc3, etc., it will always occur with the same notation in RP-SMILES, namely cccccc6.