baco[7], coba[7], obca[7], canc[6], bano[6], baon[6], bona[6],
cab[6], cob[6], ban[5], abo[5], boa[5], oba[5], bon[5], cna[4], noc[4], ano[3], ona[3],
ba[4], bo[4], co[3], na[2], no[2], on[2],
