lurer ulrer lruer rluer urler ruler luerr ulerr leurr elurr uelrr eulrr lreur rleur lerur elrur relur erlur urelr ruelr uerlr eurlr reulr erulr lurre ulrre lrure rlure urlre rulre lurre ulrre lrure rlure urlre rulre lrrue rlrue lrrue rlrue rrlue rrlue urrle rurle urrle rurle rrule rrule luerr ulerr leurr elurr uelrr eulrr lurer ulrer lruer rluer urler ruler lerur elrur lreur rleur erlur relur uerlr eurlr urelr ruelr erulr reulr lreru rleru lerru elrru relru erlru lrreu rlreu lrreu rlreu rrleu rrleu lerru elrru lreru rleru erlru relru rerlu errlu rrelu rrelu errlu rerlu urerl ruerl uerrl eurrl reurl erurl urrel rurel urrel rurel rruel rruel uerrl eurrl urerl ruerl erurl reurl rerul errul rreul rreul errul rerul
Note: these 'words' (valid or invalid) are all the permutations of the word lurer. These words are obtained by scrambling the letters in lurer.