itrowi[7], tirowi[7], triowi[7],
torii[6], wtroi[6],
titr[6], tort[6], trio[5], troi[5], twoi[5], wito[5],
tit[5], toi[4], itr[4], tir[4], tri[4], ort[4], rot[4], tor[4], roi[3], wii[3], iwo[3], owi[3], wio[3], wir[3], rwo[3],
ot[3], to[3], ii[2], or[2], ro[2], iw[2],
