poenh openh peonh eponh oepnh eopnh poneh opneh pnoeh npoeh onpeh nopeh penoh epnoh pneoh npeoh enpoh nepoh oenph eonph oneph noeph enoph neoph poehn opehn peohn epohn oephn eophn pohen ophen phoen hpoen ohpen hopen pehon ephon pheon hpeon ehpon hepon oehpn eohpn ohepn hoepn ehopn heopn ponhe opnhe pnohe npohe onphe nophe pohne ophne phone hpone ohpne hopne pnhoe nphoe phnoe hpnoe nhpoe hnpoe onhpe nohpe ohnpe honpe nhope hnope penho epnho pneho npeho enpho nepho pehno ephno pheno hpeno ehpno hepno pnheo npheo phneo hpneo nhpeo hnpeo enhpo nehpo ehnpo henpo nhepo hnepo oenhp eonhp onehp noehp enohp neohp oehnp eohnp ohenp hoenp ehonp heonp onhep nohep ohnep honep nhoep hnoep enhop nehop ehnop henop nheop hneop
Note: these 'words' (valid or invalid) are all the permutations of the word poenh. These words are obtained by scrambling the letters in poenh.