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