triod[7], dioro[6], rotor[6],
ooid[5], dior[5], odro[5], ordo[5], trio[5], troi[5], root[5], roto[5], toro[5],
dit[5], doi[4], ido[4], odo[4], odr[4], ord[4], rod[4], drr[4], toi[4], oto[4], itr[4], tir[4], tri[4], ort[4], rot[4], tor[4], roi[3], oro[3],
id[3], do[3], od[3], ot[3], to[3], or[2], ro[2],
