wring rwing wirng iwrng riwng irwng wrnig rwnig wnrig nwrig rnwig nrwig winrg iwnrg wnirg nwirg inwrg niwrg rinwg irnwg rniwg nriwg inrwg nirwg wrign rwign wirgn iwrgn riwgn irwgn wrgin rwgin wgrin gwrin rgwin grwin wigrn iwgrn wgirn gwirn igwrn giwrn rigwn irgwn rgiwn griwn igrwn girwn wrngi rwngi wnrgi nwrgi rnwgi nrwgi wrgni rwgni wgrni gwrni rgwni grwni wngri nwgri wgnri gwnri ngwri gnwri rngwi nrgwi rgnwi grnwi ngrwi gnrwi wingr iwngr wnigr nwigr inwgr niwgr wignr iwgnr wginr gwinr igwnr giwnr wngir nwgir wgnir gwnir ngwir gnwir ingwr nigwr ignwr ginwr ngiwr gniwr ringw irngw rnigw nrigw inrgw nirgw rignw irgnw rginw grinw igrnw girnw rngiw nrgiw rgniw grniw ngriw gnriw ingrw nigrw ignrw ginrw ngirw gnirw
Note: these 'words' (valid or invalid) are all the permutations of the word wring. These words are obtained by scrambling the letters in wring.