hepar ehpar hpear phear ephar pehar heapr ehapr haepr ahepr eahpr aehpr hpaer phaer haper ahper paher apher epahr peahr eaphr aephr paehr apehr hepra ehpra hpera phera ephra pehra herpa ehrpa hrepa rhepa erhpa rehpa hprea phrea hrpea rhpea prhea rphea eprha perha erpha repha preha rpeha hearp eharp haerp aherp eahrp aehrp herap ehrap hreap rheap erhap rehap harep ahrep hraep rhaep arhep rahep earhp aerhp erahp reahp arehp raehp hpare phare hapre ahpre pahre aphre hprae phrae hrpae rhpae prhae rphae harpe ahrpe hrape rhape arhpe rahpe parhe aprhe prahe rpahe arphe raphe eparh pearh eaprh aeprh paerh aperh eprah perah erpah repah preah rpeah earph aerph eraph reaph areph raeph pareh apreh praeh rpaeh arpeh rapeh
Note: these 'words' (valid or invalid) are all the permutations of the word hepar. These words are obtained by scrambling the letters in hepar.