chno[7], chon[7], hond[7], dnom[6],
hoj[7], hoc[6], och[6], jod[6], mho[6], ohm[6], cod[5], doc[5], com[5], moc[5], dom[5], mod[5], odm[5], jon[5], noc[4], dno[4], don[4], mon[4], nom[4],
hm[5], ho[4], oh[4], oj[4], co[3], do[3], od[3], om[3], no[2], on[2],
