hurst uhrst hrust rhust urhst ruhst husrt uhsrt hsurt shurt ushrt suhrt hrsut rhsut hsrut shrut rshut srhut ursht rusht usrht surht rsuht sruht hurts uhrts hruts rhuts urhts ruhts hutrs uhtrs hturs thurs uthrs tuhrs hrtus rhtus htrus thrus rthus trhus urths ruths utrhs turhs rtuhs truhs hustr uhstr hsutr shutr ushtr suhtr hutsr uhtsr htusr thusr uthsr tuhsr hstur shtur htsur thsur sthur tshur usthr suthr utshr tushr stuhr tsuhr hrstu rhstu hsrtu shrtu rshtu srhtu hrtsu rhtsu htrsu thrsu rthsu trhsu hstru shtru htsru thsru sthru tshru rsthu srthu rtshu trshu strhu tsrhu ursth rusth usrth surth rsuth sruth urtsh rutsh utrsh tursh rtush trush ustrh sutrh utsrh tusrh sturh tsurh rstuh srtuh rtsuh trsuh struh tsruh
Note: these 'words' (valid or invalid) are all the permutations of the word hurst. These words are obtained by scrambling the letters in hurst.