ponrt opnrt pnort nport onprt noprt pornt oprnt pront rpont orpnt ropnt pnrot nprot prnot rpnot nrpot rnpot onrpt norpt ornpt ronpt nropt rnopt pontr opntr pnotr npotr onptr noptr potnr optnr ptonr tponr otpnr topnr pntor nptor ptnor tpnor ntpor tnpor ontpr notpr otnpr tonpr ntopr tnopr portn oprtn protn rpotn orptn roptn potrn optrn ptorn tporn otprn toprn prton rpton ptron tpron rtpon trpon ortpn rotpn otrpn torpn rtopn tropn pnrto nprto prnto rpnto nrpto rnpto pntro nptro ptnro tpnro ntpro tnpro prtno rptno ptrno tprno rtpno trpno nrtpo rntpo ntrpo tnrpo rtnpo trnpo onrtp nortp orntp rontp nrotp rnotp ontrp notrp otnrp tonrp ntorp tnorp ortnp rotnp otrnp tornp rtonp tronp nrtop rntop ntrop tnrop rtnop trnop
Note: these 'words' (valid or invalid) are all the permutations of the word ponrt. These words are obtained by scrambling the letters in ponrt.