beg[7], bel[6], ble[6], leg[6], cel[5], cle[5], lec[5], cep[5], lep[5], pel[5], ple[5], ber[5], erb[5], reb[5], erg[5], brr[5], cer[4], per[4], rep[4], prr[4],
be[4], ce[3], el[3], pe[3], er[2], re[2],
