hporn phorn hoprn ohprn pohrn ophrn hpron phron hrpon rhpon prhon rphon horpn ohrpn hropn rhopn orhpn rohpn porhn oprhn prohn rpohn orphn rophn hponr phonr hopnr ohpnr pohnr ophnr hpnor phnor hnpor nhpor pnhor nphor honpr ohnpr hnopr nhopr onhpr nohpr ponhr opnhr pnohr npohr onphr nophr hprno phrno hrpno rhpno prhno rphno hpnro phnro hnpro nhpro pnhro nphro hrnpo rhnpo hnrpo nhrpo rnhpo nrhpo prnho rpnho pnrho nprho rnpho nrpho hornp ohrnp hronp rhonp orhnp rohnp honrp ohnrp hnorp nhorp onhrp nohrp hrnop rhnop hnrop nhrop rnhop nrhop ornhp ronhp onrhp norhp rnohp nrohp pornh oprnh pronh rponh orpnh ropnh ponrh opnrh pnorh nporh onprh noprh prnoh rpnoh pnroh nproh rnpoh nrpoh ornph ronph onrph norph rnoph nroph
Note: these 'words' (valid or invalid) are all the permutations of the word hporn. These words are obtained by scrambling the letters in hporn.