dada[4], aare[4], ader[4], rade[4], erde[4], rede[4],
dad[3], ade[3], aar[3], ara[3], dar[3], rad[3], are[3], der[3], erd[3], red[3], ree[3],
aa[2], ad[2], da[2], ar[2], er[2], re[2],
