odro[5], ordo[5], root[5], roto[5], toro[5], wodo[5],
odo[4], odr[4], ord[4], rod[4], drr[4], oto[4], ort[4], rot[4], tor[4], oro[3], owo[3], rwo[3], wrr[3],
do[3], od[3], ot[3], to[3], or[2], ro[2],
