feto[9], fetw[9], weto[5],
fet[8], tef[8], fot[8], fee[7], efo[7], eto[4], twe[4], wet[4], wte[4], ewe[3], ewo[3], owe[3],
ef[6], fe[6], et[3], te[3], ot[3], to[3], ee[2], eo[2], ew[2], we[2],
