torii[6], owito[6], wtroi[6],
trio[5], troi[5], root[5], roto[5], toro[5], twoi[5], wito[5],
toi[4], oto[4], itr[4], tir[4], tri[4], ort[4], rot[4], tor[4], roi[3], oro[3], wii[3], iwo[3], owi[3], wio[3], owo[3], wir[3], rwo[3],
ot[3], to[3], ii[2], or[2], ro[2], iw[2],
