pech[8], cher[7], herc[7], crep[6], spec[6], serc[5], pers[5],
che[6], ech[6], hec[6], hep[6], cep[5], her[5], hes[5], cer[4], per[4], rep[4], ces[4], sep[4], ser[3],
eh[4], he[4], ce[3], pe[3], er[2], re[2], es[2], se[2],
