bank[7], baco[7], coba[7], obca[7], bako[7], coka[6], koca[6], bano[6], baon[6], bona[6], kano[5], kaon[5], koan[5], kona[5], nako[5], noka[5], okna[5],
cab[6], bak[6], cob[6], bok[6], kac[5], ban[5], abo[5], boa[5], oba[5], koc[5], bon[5], cna[4], kan[4], oka[4], noc[4], nok[4], ano[3], ona[3],
ba[4], bo[4], ka[3], co[3], ko[3], ok[3], na[2], no[2], on[2],
