afer[8], afro[8], arfo[8], faro[8], fora[8], orfa[8], rafo[8], efor[8],
efa[7], efo[7], arf[7], far[7], raf[7], ref[7], for[7], orf[7], era[3], rea[3], aro[3], ora[3], ero[3],
fa[6], ef[6], fe[6], eo[2], ar[2], er[2], re[2], or[2], ro[2],
