bused ubsed bsued sbued usbed subed buesd ubesd beusd ebusd uebsd eubsd bseud sbeud besud ebsud sebud esbud usebd suebd uesbd eusbd seubd esubd busde ubsde bsude sbude usbde subde budse ubdse bduse dbuse udbse dubse bsdue sbdue bdsue dbsue sdbue dsbue usdbe sudbe udsbe dusbe sdube dsube bueds ubeds beuds ebuds uebds eubds budes ubdes bdues dbues udbes dubes bedus ebdus bdeus dbeus edbus debus uedbs eudbs udebs duebs edubs deubs bsedu sbedu besdu ebsdu sebdu esbdu bsdeu sbdeu bdseu dbseu sdbeu dsbeu bedsu ebdsu bdesu dbesu edbsu debsu sedbu esdbu sdebu dsebu edsbu desbu usedb suedb uesdb eusdb seudb esudb usdeb sudeb udseb duseb sdueb dsueb uedsb eudsb udesb duesb edusb deusb sedub esdub sdeub dseub edsub desub
Note: these 'words' (valid or invalid) are all the permutations of the word bused. These words are obtained by scrambling the letters in bused.