budis ubdis bduis dbuis udbis dubis buids ubids biuds ibuds uibds iubds bdius dbius bidus ibdus dibus idbus udibs duibs uidbs iudbs diubs idubs budsi ubdsi bdusi dbusi udbsi dubsi busdi ubsdi bsudi sbudi usbdi subdi bdsui dbsui bsdui sbdui dsbui sdbui udsbi dusbi usdbi sudbi dsubi sdubi buisd ubisd biusd ibusd uibsd iubsd busid ubsid bsuid sbuid usbid subid bisud ibsud bsiud sbiud isbud sibud uisbd iusbd usibd suibd isubd siubd bdisu dbisu bidsu ibdsu dibsu idbsu bdsiu dbsiu bsdiu sbdiu dsbiu sdbiu bisdu ibsdu bsidu sbidu isbdu sibdu disbu idsbu dsibu sdibu isdbu sidbu udisb duisb uidsb iudsb diusb idusb udsib dusib usdib sudib dsuib sduib uisdb iusdb usidb suidb isudb siudb disub idsub dsiub sdiub isdub sidub
Note: these 'words' (valid or invalid) are all the permutations of the word budis. These words are obtained by scrambling the letters in budis.