pulls uplls pluls lpuls ulpls lupls pulls uplls pluls lpuls ulpls lupls pllus lplus pllus lplus llpus llpus ullps lulps ullps lulps llups llups pulsl uplsl plusl lpusl ulpsl lupsl pusll upsll psull spull uspll supll plsul lpsul pslul splul lspul slpul ulspl luspl uslpl sulpl lsupl slupl pulsl uplsl plusl lpusl ulpsl lupsl pusll upsll psull spull uspll supll plsul lpsul pslul splul lspul slpul ulspl luspl uslpl sulpl lsupl slupl pllsu lplsu pllsu lplsu llpsu llpsu plslu lpslu psllu spllu lsplu slplu plslu lpslu psllu spllu lsplu slplu llspu llspu lslpu sllpu lslpu sllpu ullsp lulsp ullsp lulsp llusp llusp ulslp luslp usllp sullp lsulp slulp ulslp luslp usllp sullp lsulp slulp llsup llsup lslup sllup lslup sllup
Note: these 'words' (valid or invalid) are all the permutations of the word pulls. These words are obtained by scrambling the letters in pulls.