burke ubrke bruke rbuke urbke rubke bukre ubkre bkure kbure ukbre kubre brkue rbkue bkrue kbrue rkbue krbue urkbe rukbe ukrbe kurbe rkube krube burek ubrek bruek rbuek urbek rubek buerk uberk beurk eburk uebrk eubrk breuk rbeuk beruk ebruk rebuk erbuk urebk ruebk uerbk eurbk reubk erubk buker ubker bkuer kbuer ukber kuber buekr ubekr beukr ebukr uebkr eubkr bkeur kbeur bekur ebkur kebur ekbur ukebr kuebr uekbr eukbr keubr ekubr brkeu rbkeu bkreu kbreu rkbeu krbeu breku rbeku berku ebrku rebku erbku bkeru kberu bekru ebkru kebru ekbru rkebu krebu rekbu erkbu kerbu ekrbu urkeb rukeb ukreb kureb rkueb krueb urekb ruekb uerkb eurkb reukb erukb ukerb kuerb uekrb eukrb keurb ekurb rkeub kreub rekub erkub kerub ekrub
Note: these 'words' (valid or invalid) are all the permutations of the word burke. These words are obtained by scrambling the letters in burke.