wrast rwast warst awrst rawst arwst wrsat rwsat wsrat swrat rswat srwat wasrt awsrt wsart swart aswrt sawrt raswt arswt rsawt srawt asrwt sarwt wrats rwats warts awrts rawts arwts wrtas rwtas wtras twras rtwas trwas watrs awtrs wtars twars atwrs tawrs ratws artws rtaws traws atrws tarws wrsta rwsta wsrta swrta rswta srwta wrtsa rwtsa wtrsa twrsa rtwsa trwsa wstra swtra wtsra twsra stwra tswra rstwa srtwa rtswa trswa strwa tsrwa wastr awstr wsatr swatr aswtr sawtr watsr awtsr wtasr twasr atwsr tawsr wstar swtar wtsar twsar stwar tswar astwr satwr atswr taswr stawr tsawr rastw arstw rsatw sratw asrtw sartw ratsw artsw rtasw trasw atrsw tarsw rstaw srtaw rtsaw trsaw straw tsraw astrw satrw atsrw tasrw starw tsarw
Note: these 'words' (valid or invalid) are all the permutations of the word wrast. These words are obtained by scrambling the letters in wrast.