bdsmu dbsmu bsdmu sbdmu dsbmu sdbmu bdmsu dbmsu bmdsu mbdsu dmbsu mdbsu bsmdu sbmdu bmsdu mbsdu smbdu msbdu dsmbu sdmbu dmsbu mdsbu smdbu msdbu bdsum dbsum bsdum sbdum dsbum sdbum bdusm dbusm budsm ubdsm dubsm udbsm bsudm sbudm busdm ubsdm subdm usbdm dsubm sdubm dusbm udsbm sudbm usdbm bdmus dbmus bmdus mbdus dmbus mdbus bdums dbums budms ubdms dubms udbms bmuds mbuds bumds ubmds mubds umbds dmubs mdubs dumbs udmbs mudbs umdbs bsmud sbmud bmsud mbsud smbud msbud bsumd sbumd busmd ubsmd submd usbmd bmusd mbusd bumsd ubmsd mubsd umbsd smubd msubd sumbd usmbd musbd umsbd dsmub sdmub dmsub mdsub smdub msdub dsumb sdumb dusmb udsmb sudmb usdmb dmusb mdusb dumsb udmsb mudsb umdsb smudb msudb sumdb usmdb musdb umsdb
Note: these 'words' (valid or invalid) are all the permutations of the word bdsmu. These words are obtained by scrambling the letters in bdsmu.