pech[8], cher[7], herc[7], grek[7], crep[6], krep[6],
pfe[8], ref[7], che[6], ech[6], hec[6], keg[6], hep[6], cek[5], cep[5], erg[5], her[5], cer[4], ker[4], rek[4], per[4], rep[4],
ef[6], fe[6], eh[4], he[4], ce[3], pe[3], er[2], re[2],
