gibus igbus gbius bgius ibgus bigus giubs igubs guibs ugibs iugbs uigbs gbuis bguis gubis ugbis bugis ubgis ibugs biugs iubgs uibgs buigs ubigs gibsu igbsu gbisu bgisu ibgsu bigsu gisbu igsbu gsibu sgibu isgbu sigbu gbsiu bgsiu gsbiu sgbiu bsgiu sbgiu ibsgu bisgu isbgu sibgu bsigu sbigu giusb igusb guisb ugisb iugsb uigsb gisub igsub gsiub sgiub isgub sigub gusib ugsib gsuib sguib usgib sugib iusgb uisgb isugb siugb usigb suigb gbusi bgusi gubsi ugbsi bugsi ubgsi gbsui bgsui gsbui sgbui bsgui sbgui gusbi ugsbi gsubi sgubi usgbi sugbi busgi ubsgi bsugi sbugi usbgi subgi ibusg biusg iubsg uibsg buisg ubisg ibsug bisug isbug sibug bsiug sbiug iusbg uisbg isubg siubg usibg suibg busig ubsig bsuig sbuig usbig subig
Note: these 'words' (valid or invalid) are all the permutations of the word gibus. These words are obtained by scrambling the letters in gibus.