happy ahppy hpapy phapy aphpy pahpy happy ahppy hpapy phapy aphpy pahpy hppay phpay hppay phpay pphay pphay apphy paphy apphy paphy ppahy ppahy hapyp ahpyp hpayp phayp aphyp pahyp haypp ahypp hyapp yhapp ayhpp yahpp hpyap phyap hypap yhpap pyhap yphap apyhp payhp ayphp yaphp pyahp ypahp hapyp ahpyp hpayp phayp aphyp pahyp haypp ahypp hyapp yhapp ayhpp yahpp hpyap phyap hypap yhpap pyhap yphap apyhp payhp ayphp yaphp pyahp ypahp hppya phpya hppya phpya pphya pphya hpypa phypa hyppa yhppa pyhpa yphpa hpypa phypa hyppa yhppa pyhpa yphpa ppyha ppyha pypha yppha pypha yppha appyh papyh appyh papyh ppayh ppayh apyph payph aypph yapph pyaph ypaph apyph payph aypph yapph pyaph ypaph ppyah ppyah pypah yppah pypah yppah
Note: these 'words' (valid or invalid) are all the permutations of the word happy. These words are obtained by scrambling the letters in happy.