opeer[6], reper[6], peror[6], spore[6], resor[5],
oper[5], pero[5], epos[5], osep[5], peso[5], pers[5], pros[5], psor[5], spor[5], oere[4], eser[4], eros[4],
per[4], rep[4], por[4], pro[4], rop[4], prr[4], sep[4], osp[4], ero[3], ser[3], ros[3],
pe[3], op[3], po[3], ee[2], eo[2], er[2], re[2], or[2], ro[2], es[2], se[2], os[2],
