shlub hslub slhub lshub hlsub lhsub shulb hsulb suhlb ushlb huslb uhslb sluhb lsuhb sulhb uslhb lushb ulshb hlusb lhusb hulsb uhlsb luhsb ulhsb shlbu hslbu slhbu lshbu hlsbu lhsbu shblu hsblu sbhlu bshlu hbslu bhslu slbhu lsbhu sblhu bslhu lbshu blshu hlbsu lhbsu hblsu bhlsu lbhsu blhsu shubl hsubl suhbl ushbl husbl uhsbl shbul hsbul sbhul bshul hbsul bhsul subhl usbhl sbuhl bsuhl ubshl bushl hubsl uhbsl hbusl bhusl ubhsl buhsl slubh lsubh sulbh uslbh lusbh ulsbh slbuh lsbuh sbluh bsluh lbsuh blsuh sublh usblh sbulh bsulh ubslh buslh lubsh ulbsh lbush blush ublsh bulsh hlubs lhubs hulbs uhlbs luhbs ulhbs hlbus lhbus hblus bhlus lbhus blhus hubls uhbls hbuls bhuls ubhls buhls lubhs ulbhs lbuhs bluhs ublhs bulhs
Note: these 'words' (valid or invalid) are all the permutations of the word shlub. These words are obtained by scrambling the letters in shlub.