chno[7], chon[7], hond[7], pond[6],
hoj[7], hoc[6], och[6], jod[6], hop[6], cod[5], doc[5], jon[5], pod[5], noc[4], dno[4], don[4],
ho[4], oh[4], oj[4], co[3], do[3], od[3], op[3], po[3], no[2], on[2],
