peer[7], reep[7], gere[5], rege[5], regt[5], erde[4], rede[4], reet[4], teer[4],
cer[6], per[6], rep[6], erg[4], ger[4], reg[4], der[3], erd[3], red[3], ree[3], tee[3],
er[2], re[2], et[2],