sistra isstra ssitra ssitra isstra sistra sitsra istsra stisra tsisra itssra tissra sstira sstira stsira tssira stsira tssira istsra sitsra itssra tissra stisra tsisra sisrta issrta ssirta ssirta issrta sisrta sirsta isrsta srista rsista irssta rissta ssrita ssrita srsita rssita srsita rssita isrsta sirsta irssta rissta srista rsista sitrsa istrsa stirsa tsirsa itsrsa tisrsa sirtsa isrtsa sritsa rsitsa irstsa ristsa strisa tsrisa srtisa rstisa trsisa rtsisa itrssa tirssa irtssa ritssa trissa rtissa sstria sstria stsria tssria stsria tssria ssrtia ssrtia srstia rsstia srstia rsstia strsia tsrsia srtsia rstsia trssia rtssia strsia tsrsia srtsia rstsia trssia rtssia istrsa sitrsa itsrsa tisrsa stirsa tsirsa isrtsa sirtsa irstsa ristsa sritsa rsitsa itrssa tirssa irtssa ritssa trissa rtissa strisa tsrisa srtisa rstisa trsisa rtsisa sistar isstar ssitar ssitar isstar sistar sitsar istsar stisar tsisar itssar tissar sstiar sstiar stsiar tssiar stsiar tssiar istsar sitsar itssar tissar stisar tsisar sisatr issatr ssiatr ssiatr issatr sisatr siastr isastr saistr asistr iasstr aisstr ssaitr ssaitr sasitr assitr sasitr assitr isastr siastr iasstr aisstr saistr asistr sitasr istasr stiasr tsiasr itsasr tisasr siatsr isatsr saitsr asitsr iastsr aistsr staisr tsaisr satisr astisr tasisr atsisr itassr tiassr iatssr aitssr taissr atissr sstair sstair stsair tssair stsair tssair ssatir ssatir sastir asstir sastir asstir stasir tsasir satsir astsir tassir atssir stasir tsasir satsir astsir tassir atssir istasr sitasr itsasr tisasr stiasr tsiasr isatsr siatsr iastsr aistsr saitsr asitsr itassr tiassr iatssr aitssr taissr atissr staisr tsaisr satisr astisr tasisr atsisr sisrat issrat ssirat ssirat issrat sisrat sirsat isrsat srisat rsisat irssat rissat ssriat ssriat srsiat rssiat srsiat rssiat isrsat sirsat irssat rissat srisat rsisat sisart issart ssiart ssiart issart sisart siasrt isasrt saisrt asisrt iassrt aissrt ssairt ssairt sasirt assirt sasirt assirt isasrt siasrt iassrt aissrt saisrt asisrt sirast israst sriast rsiast irsast risast siarst isarst sairst asirst iasrst aisrst sraist rsaist sarist asrist rasist arsist irasst riasst iarsst airsst raisst arisst ssrait ssrait srsait rssait srsait rssait ssarit ssarit sasrit assrit sasrit assrit srasit rsasit sarsit asrsit rassit arssit srasit rsasit sarsit asrsit rassit arssit israst sirast irsast risast sriast rsiast isarst siarst iasrst aisrst sairst asirst irasst riasst iarsst airsst raisst arisst sraist rsaist sarist asrist rasist arsist sitras istras stiras tsiras itsras tisras sirtas isrtas sritas rsitas irstas ristas strias tsrias srtias rstias trsias rtsias itrsas tirsas irtsas ritsas trisas rtisas sitars istars stiars tsiars itsars tisars siatrs isatrs saitrs asitrs iastrs aistrs stairs tsairs satirs astirs tasirs atsirs itasrs tiasrs iatsrs aitsrs taisrs atisrs sirats israts sriats rsiats irsats risats siarts isarts sairts asirts iasrts aisrts sraits rsaits sarits asrits rasits arsits irasts riasts iarsts airsts raists arists strais tsrais srtais rstais trsais rtsais staris tsaris satris astris tasris atsris sratis rsatis sartis asrtis rastis arstis trasis rtasis tarsis atrsis ratsis artsis itrass tirass irtass ritass triass rtiass itarss tiarss iatrss aitrss tairss atirss iratss riatss iartss airtss raitss aritss traiss rtaiss tariss atriss ratiss artiss sstrai sstrai stsrai tssrai stsrai tssrai ssrtai ssrtai srstai rsstai srstai rsstai strsai tsrsai srtsai rstsai trssai rtssai strsai tsrsai srtsai rstsai trssai rtssai sstari sstari stsari tssari stsari tssari ssatri ssatri sastri asstri sastri asstri stasri tsasri satsri astsri tassri atssri stasri tsasri satsri astsri tassri atssri ssrati ssrati srsati rssati srsati rssati ssarti ssarti sasrti assrti sasrti assrti srasti rsasti sarsti asrsti rassti arssti srasti rsasti sarsti asrsti rassti arssti strasi tsrasi srtasi rstasi trsasi rtsasi starsi tsarsi satrsi astrsi tasrsi atsrsi sratsi rsatsi sartsi asrtsi rastsi arstsi trassi rtassi tarssi atrssi ratssi artssi strasi tsrasi srtasi rstasi trsasi rtsasi starsi tsarsi satrsi astrsi tasrsi atsrsi sratsi rsatsi sartsi asrtsi rastsi arstsi trassi rtassi tarssi atrssi ratssi artssi istras sitras itsras tisras stiras tsiras isrtas sirtas irstas ristas sritas rsitas itrsas tirsas irtsas ritsas trisas rtisas strias tsrias srtias rstias trsias rtsias istars sitars itsars tisars stiars tsiars isatrs siatrs iastrs aistrs saitrs asitrs itasrs tiasrs iatsrs aitsrs taisrs atisrs stairs tsairs satirs astirs tasirs atsirs israts sirats irsats risats sriats rsiats isarts siarts iasrts aisrts sairts asirts irasts riasts iarsts airsts raists arists sraits rsaits sarits asrits rasits arsits itrass tirass irtass ritass triass rtiass itarss tiarss iatrss aitrss tairss atirss iratss riatss iartss airtss raitss aritss traiss rtaiss tariss atriss ratiss artiss strais tsrais srtais rstais trsais rtsais staris tsaris satris astris tasris atsris sratis rsatis sartis asrtis rastis arstis trasis rtasis tarsis atrsis ratsis artsis
Note: these 'words' (valid or invalid) are all the permutations of the word sistra. These words are obtained by scrambling the letters in sistra.