pety[7], tryp[7], tyrp[7], pert[6], trep[6], pery[6], repy[6], rety[6], ryte[6], tery[6],
pyt[6], typ[6], pet[5], pyr[5], ryp[5], ety[5], ryt[5], try[5], per[4], rep[4], ret[4], ter[4], ery[4],
ty[4], pe[3], et[3], te[3], er[2], re[2],
