hirer ihrer hrier rhier irher riher hierr iherr heirr ehirr iehrr eihrr hreir rheir herir ehrir rehir erhir irehr riehr ierhr eirhr reihr erihr hirre ihrre hrire rhire irhre rihre hirre ihrre hrire rhire irhre rihre hrrie rhrie hrrie rhrie rrhie rrhie irrhe rirhe irrhe rirhe rrihe rrihe hierr iherr heirr ehirr iehrr eihrr hirer ihrer hrier rhier irher riher herir ehrir hreir rheir erhir rehir ierhr eirhr irehr riehr erihr reihr hreri rheri herri ehrri rehri erhri hrrei rhrei hrrei rhrei rrhei rrhei herri ehrri hreri rheri erhri rehri rerhi errhi rrehi rrehi errhi rerhi irerh rierh ierrh eirrh reirh erirh irreh rireh irreh rireh rrieh rrieh ierrh eirrh irerh rierh erirh reirh rerih errih rreih rreih errih rerih
Note: these 'words' (valid or invalid) are all the permutations of the word hirer. These words are obtained by scrambling the letters in hirer.