haf[9], aft[8], taf[8], fet[8], tef[8], fot[8], efa[7], efo[7], het[6], hot[6], aha[5], hao[5], dat[5], edt[5], dao[4], oda[4], deo[4], ode[4], ata[4], ate[4], eta[4], tao[4], eto[4],
fa[6], ef[6], fe[6], ha[4], eh[4], he[4], ho[4], oh[4], ad[3], da[3], de[3], do[3], od[3], at[3], ta[3], et[3], te[3], ot[3], to[3], aa[2], eo[2],