chno[7], chon[7], bont[7], bocz[7], tocz[6],
cob[6], hoc[6], och[6], bot[6], hot[6], bon[5], noc[4], not[4], ton[4], won[3], zon[3],
bo[4], ho[4], oh[4], co[3], ot[3], to[3], no[2], on[2], oz[2],
