ciot[6], cito[6], tico[6], trio[5], troi[5], wcir[5], twoi[5], wito[5],
toi[4], itr[4], tir[4], tri[4], ort[4], rot[4], tor[4], wic[4], roi[3], iwo[3], owi[3], wio[3], wir[3], rwo[3],
ci[3], co[3], ot[3], to[3], or[2], ro[2], iw[2],
