chno[7], chon[7], soch[7], snob[6],
fob[9], bob[7], fon[7], fos[7], sof[7], cob[6], hoc[6], och[6], bon[5], noc[4], soc[4], nos[3], son[3],
bo[4], ho[4], oh[4], co[3], no[2], on[2], os[2],
