gdtre dgtre gtdre tgdre dtgre tdgre gdrte dgrte grdte rgdte drgte rdgte gtrde tgrde grtde rgtde trgde rtgde dtrge tdrge drtge rdtge trdge rtdge gdter dgter gtder tgder dtger tdger gdetr dgetr gedtr egdtr degtr edgtr gtedr tgedr getdr egtdr tegdr etgdr dtegr tdegr detgr edtgr tedgr etdgr gdret dgret grdet rgdet drget rdget gdert dgert gedrt egdrt degrt edgrt gredt rgedt gerdt egrdt regdt ergdt dregt rdegt dergt edrgt redgt erdgt gtred tgred grted rgted trged rtged gterd tgerd getrd egtrd tegrd etgrd gretd rgetd gertd egrtd regtd ergtd tregd rtegd tergd etrgd retgd ertgd dtreg tdreg drteg rdteg trdeg rtdeg dterg tderg detrg edtrg tedrg etdrg dretg rdetg dertg edrtg redtg erdtg tredg rtedg terdg etrdg retdg ertdg
Note: these 'words' (valid or invalid) are all the permutations of the word gdtre. These words are obtained by scrambling the letters in gdtre.