Input (grade 6): SÃ nas is a commune in the Bouches-du-Rh Ã ne department in southern France.
Output (grade 4): SÃ nas is a commune of 5,980 people (2004). It is found in the region Provence-Alpes-C Ã te d'Azur in the Bouches-du-Rh Ã ne department in the south of France.