byded ybded bdyed dbyed ydbed dybed byedd ybedd beydd ebydd yebdd eybdd bdeyd dbeyd bedyd ebdyd debyd edbyd ydebd dyebd yedbd eydbd deybd edybd bydde ybdde bdyde dbyde ydbde dybde bydde ybdde bdyde dbyde ydbde dybde bddye dbdye bddye dbdye ddbye ddbye yddbe dydbe yddbe dydbe ddybe ddybe byedd ybedd beydd ebydd yebdd eybdd byded ybded bdyed dbyed ydbed dybed bedyd ebdyd bdeyd dbeyd edbyd debyd yedbd eydbd ydebd dyebd edybd deybd bdedy dbedy beddy ebddy debdy edbdy bddey dbdey bddey dbdey ddbey ddbey beddy ebddy bdedy dbedy edbdy debdy dedby eddby ddeby ddeby eddby dedby ydedb dyedb yeddb eyddb deydb edydb yddeb dydeb yddeb dydeb ddyeb ddyeb yeddb eyddb ydedb dyedb edydb deydb dedyb eddyb ddeyb ddeyb eddyb dedyb
Note: these 'words' (valid or invalid) are all the permutations of the word byded. These words are obtained by scrambling the letters in byded.