depce[8], derce[7], ceper[7], perce[7],
dece[6], cedr[6], cred[6], crep[6], erce[5],
cep[5], cer[4], der[4], red[4], per[4], rep[4],
ce[3], de[3], pe[3], ee[2], er[2], re[2],
