oper[8], pore[8], peer[7], reep[7], pure[7], euro[5], roue[5], euer[4], eure[4], reue[4],
epo[7], pro[7], per[6], rep[6], pur[6], ree[3], reu[3], ure[3],
po[6], er[2], re[2], ur[2],
