tondo[7], dront[7], donor[6], nordo[6], rondo[6], toron[6],
tond[6], dorn[5], nord[5], rond[5], odro[5], ordo[5], noto[5], tono[5], ront[5], tron[5], root[5], roto[5], toro[5], noro[4],
dno[4], don[4], odo[4], odr[4], ord[4], rod[4], not[4], ton[4], oto[4], ort[4], rot[4], tor[4], ono[3], nor[3], oro[3],
do[3], od[3], ot[3], to[3], no[2], on[2], or[2], ro[2],
