splur pslur slpur lspur plsur lpsur spulr psulr suplr usplr puslr upslr slupr lsupr sulpr uslpr luspr ulspr plusr lpusr pulsr uplsr lupsr ulpsr splru pslru slpru lspru plsru lpsru sprlu psrlu srplu rsplu prslu rpslu slrpu lsrpu srlpu rslpu lrspu rlspu plrsu lprsu prlsu rplsu lrpsu rlpsu spurl psurl suprl usprl pusrl upsrl sprul psrul srpul rspul prsul rpsul surpl usrpl srupl rsupl urspl ruspl pursl uprsl prusl rpusl urpsl rupsl slurp lsurp sulrp uslrp lusrp ulsrp slrup lsrup srlup rslup lrsup rlsup surlp usrlp srulp rsulp urslp ruslp lursp ulrsp lrusp rlusp urlsp rulsp plurs lpurs pulrs uplrs luprs ulprs plrus lprus prlus rplus lrpus rlpus purls uprls pruls rpuls urpls rupls lurps ulrps lrups rlups urlps rulps
Note: these 'words' (valid or invalid) are all the permutations of the word splur. These words are obtained by scrambling the letters in splur.