nbaio bnaio nabio anbio banio abnio nbiao bniao nibao inbao binao ibnao naibo anibo niabo inabo ainbo ianbo baino abino biano ibano aibno iabno nbaoi bnaoi naboi anboi banoi abnoi nboai bnoai nobai onbai bonai obnai naobi anobi noabi onabi aonbi oanbi baoni aboni boani obani aobni oabni nbioa bnioa niboa inboa binoa ibnoa nboia bnoia nobia onbia bonia obnia nioba inoba noiba oniba ionba oinba biona ibona boina obina iobna oibna naiob aniob niaob inaob ainob ianob naoib anoib noaib onaib aonib oanib nioab inoab noiab oniab ionab oinab aionb iaonb aoinb oainb ioanb oianb baion abion biaon ibaon aibon iabon baoin aboin boain obain aobin oabin bioan iboan boian obian ioban oiban aiobn iaobn aoibn oaibn ioabn oiabn
Note: these 'words' (valid or invalid) are all the permutations of the word nbaio. These words are obtained by scrambling the letters in nbaio.