writs rwits wirts iwrts riwts irwts wrtis rwtis wtris twris rtwis trwis witrs iwtrs wtirs twirs itwrs tiwrs ritws irtws rtiws triws itrws tirws wrist rwist wirst iwrst riwst irwst wrsit rwsit wsrit swrit rswit srwit wisrt iwsrt wsirt swirt iswrt siwrt riswt irswt rsiwt sriwt isrwt sirwt wrtsi rwtsi wtrsi twrsi rtwsi trwsi wrsti rwsti wsrti swrti rswti srwti wtsri twsri wstri swtri tswri stwri rtswi trswi rstwi srtwi tsrwi strwi witsr iwtsr wtisr twisr itwsr tiwsr wistr iwstr wsitr switr iswtr siwtr wtsir twsir wstir swtir tswir stwir itswr tiswr istwr sitwr tsiwr stiwr ritsw irtsw rtisw trisw itrsw tirsw ristw irstw rsitw sritw isrtw sirtw rtsiw trsiw rstiw srtiw tsriw striw itsrw tisrw istrw sitrw tsirw stirw
Note: these 'words' (valid or invalid) are all the permutations of the word writs. These words are obtained by scrambling the letters in writs.