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