rding dring ridng irdng dirng idrng rdnig drnig rndig nrdig dnrig ndrig rindg irndg rnidg nridg inrdg nirdg dinrg idnrg dnirg ndirg indrg nidrg rdign drign ridgn irdgn dirgn idrgn rdgin drgin rgdin grdin dgrin gdrin rigdn irgdn rgidn gridn igrdn girdn digrn idgrn dgirn gdirn igdrn gidrn rdngi drngi rndgi nrdgi dnrgi ndrgi rdgni drgni rgdni grdni dgrni gdrni rngdi nrgdi rgndi grndi ngrdi gnrdi dngri ndgri dgnri gdnri ngdri gndri ringd irngd rnigd nrigd inrgd nirgd rignd irgnd rgind grind igrnd girnd rngid nrgid rgnid grnid ngrid gnrid ingrd nigrd ignrd ginrd ngird gnird dingr idngr dnigr ndigr indgr nidgr dignr idgnr dginr gdinr igdnr gidnr dngir ndgir dgnir gdnir ngdir gndir ingdr nigdr igndr gindr ngidr gnidr
Note: these 'words' (valid or invalid) are all the permutations of the word rding. These words are obtained by scrambling the letters in rding.