recie[6], orcie[6], rocie[6],
ecie[5], erce[5], cero[5], orce[5], oere[4],
cie[4], cer[4], rei[3], ero[3], roi[3],
ce[3], ci[3], co[3], ee[2], eo[2], er[2], re[2], or[2], ro[2],
