heurs ehurs huers uhers euhrs uehrs herus ehrus hreus rheus erhus rehus hures uhres hrues rhues urhes ruhes eurhs uerhs eruhs reuhs urehs ruehs heusr ehusr huesr uhesr euhsr uehsr hesur ehsur hseur sheur eshur sehur huser uhser hsuer shuer usher suher eushr ueshr esuhr seuhr usehr suehr hersu ehrsu hresu rhesu erhsu rehsu hesru ehsru hseru sheru eshru sehru hrseu rhseu hsreu shreu rsheu srheu ershu reshu esrhu serhu rsehu srehu hurse uhrse hruse rhuse urhse ruhse husre uhsre hsure shure ushre suhre hrsue rhsue hsrue shrue rshue srhue urshe rushe usrhe surhe rsuhe sruhe eursh uersh erush reush uresh ruesh eusrh uesrh esurh seurh userh suerh ersuh resuh esruh seruh rseuh sreuh urseh ruseh usreh sureh rsueh srueh
Note: these 'words' (valid or invalid) are all the permutations of the word heurs. These words are obtained by scrambling the letters in heurs.