baco[7], coba[7], obca[7], obco[7], scab[7], bosa[6], boso[6],
cab[6], cob[6], abo[5], boa[5], oba[5], bas[5], soc[4], osa[3], oso[3],
ba[4], bo[4], co[3], as[2], os[2],
