paru[7], rapu[7], puer[7], repu[7], aury[7], urea[6], pary[6], pyra[6], rapy[6], pery[6], repy[6], pera[5], repa[5],
aur[5], pyr[5], ryp[5], par[4], rap[4], per[4], rep[4], ary[4], ery[4], era[3], rea[3],
au[4], pa[3], pe[3], ee[2], ar[2], er[2], re[2],
