pierd[7], diery[7], rypie[7],
dipy[7], pyrd[7], dery[6], redy[6], iryd[6], pery[6], repy[6], dier[5], peri[5],
dip[5], idy[5], pyr[5], ryp[5], pie[4], der[4], red[4], per[4], rep[4], ery[4], rei[3],
de[3], id[3], pe[3], pi[3], er[2], re[2],
