trials rtials tirals itrals ritals irtals trails rtails tarils atrils ratils artils tiarls itarls tairls atirls iatrls aitrls riatls iratls raitls aritls iartls airtls trilas rtilas tirlas itrlas ritlas irtlas trlias rtlias tlrias ltrias rltias lrtias tilras itlras tliras ltiras iltras litras riltas irltas rlitas lritas ilrtas lirtas tralis rtalis tarlis atrlis ratlis artlis trlais rtlais tlrais ltrais rltais lrtais talris atlris tlaris ltaris altris latris raltis arltis rlatis lratis alrtis lartis tialrs italrs tailrs atilrs iatlrs aitlrs tilars itlars tliars ltiars iltars litars talirs atlirs tlairs ltairs altirs latirs ialtrs ailtrs ilatrs liatrs alitrs laitrs rialts iralts railts arilts iarlts airlts rilats irlats rliats lriats ilrats lirats ralits arlits rlaits lraits alrits larits ialrts ailrts ilarts liarts alirts lairts triasl rtiasl tirasl itrasl ritasl irtasl traisl rtaisl tarisl atrisl ratisl artisl tiarsl itarsl tairsl atirsl iatrsl aitrsl riatsl iratsl raitsl aritsl iartsl airtsl trisal rtisal tirsal itrsal ritsal irtsal trsial rtsial tsrial strial rstial srtial tisral itsral tsiral stiral istral sitral ristal irstal rsital srital isrtal sirtal trasil rtasil tarsil atrsil ratsil artsil trsail rtsail tsrail strail rstail srtail tasril atsril tsaril staril astril satril rastil arstil rsatil sratil asrtil sartil tiasrl itasrl taisrl atisrl iatsrl aitsrl tisarl itsarl tsiarl stiarl istarl sitarl tasirl atsirl tsairl stairl astirl satirl iastrl aistrl isatrl siatrl asitrl saitrl riastl irastl raistl aristl iarstl airstl risatl irsatl rsiatl sriatl isratl siratl rasitl arsitl rsaitl sraitl asritl saritl iasrtl aisrtl isartl siartl asirtl sairtl trilsa rtilsa tirlsa itrlsa ritlsa irtlsa trlisa rtlisa tlrisa ltrisa rltisa lrtisa tilrsa itlrsa tlirsa ltirsa iltrsa litrsa riltsa irltsa rlitsa lritsa ilrtsa lirtsa trisla rtisla tirsla itrsla ritsla irtsla trsila rtsila tsrila strila rstila srtila tisrla itsrla tsirla stirla istrla sitrla ristla irstla rsitla sritla isrtla sirtla trlsia rtlsia tlrsia ltrsia rltsia lrtsia trslia rtslia tsrlia strlia rstlia srtlia tlsria ltsria tslria stlria lstria sltria rlstia lrstia rsltia srltia lsrtia slrtia tilsra itlsra tlisra ltisra iltsra litsra tislra itslra tsilra stilra istlra sitlra tlsira ltsira tslira stlira lstira sltira ilstra listra isltra siltra lsitra slitra rilsta irlsta rlista lrista ilrsta lirsta rislta irslta rsilta srilta isrlta sirlta rlsita lrsita rslita srlita lsrita slrita ilsrta lisrta islrta silrta lsirta slirta tralsi rtalsi tarlsi atrlsi ratlsi artlsi trlasi rtlasi tlrasi ltrasi rltasi lrtasi talrsi atlrsi tlarsi ltarsi altrsi latrsi raltsi arltsi rlatsi lratsi alrtsi lartsi trasli rtasli tarsli atrsli ratsli artsli trsali rtsali tsrali strali rstali srtali tasrli atsrli tsarli starli astrli satrli rastli arstli rsatli sratli asrtli sartli trlsai rtlsai tlrsai ltrsai rltsai lrtsai trslai rtslai tsrlai strlai rstlai srtlai tlsrai ltsrai tslrai stlrai lstrai sltrai rlstai lrstai rsltai srltai lsrtai slrtai talsri atlsri tlasri ltasri altsri latsri taslri atslri tsalri stalri astlri satlri tlsari ltsari tslari stlari lstari sltari alstri lastri asltri saltri lsatri slatri ralsti arlsti rlasti lrasti alrsti larsti raslti arslti rsalti sralti asrlti sarlti rlsati lrsati rslati srlati lsrati slrati alsrti lasrti aslrti salrti lsarti slarti tialsr italsr tailsr atilsr iatlsr aitlsr tilasr itlasr tliasr ltiasr iltasr litasr talisr atlisr tlaisr ltaisr altisr latisr ialtsr ailtsr ilatsr liatsr alitsr laitsr tiaslr itaslr taislr atislr iatslr aitslr tisalr itsalr tsialr stialr istalr sitalr tasilr atsilr tsailr stailr astilr satilr iastlr aistlr isatlr siatlr asitlr saitlr tilsar itlsar tlisar ltisar iltsar litsar tislar itslar tsilar stilar istlar sitlar tlsiar ltsiar tsliar stliar lstiar sltiar ilstar listar isltar siltar lsitar slitar talsir atlsir tlasir ltasir altsir latsir taslir atslir tsalir stalir astlir satlir tlsair ltsair tslair stlair lstair sltair alstir lastir asltir saltir lsatir slatir ialstr ailstr ilastr liastr alistr laistr iasltr aisltr isaltr sialtr asiltr sailtr ilsatr lisatr islatr silatr lsiatr sliatr alsitr lasitr aslitr salitr lsaitr slaitr rialst iralst railst arilst iarlst airlst rilast irlast rliast lriast ilrast lirast ralist arlist rlaist lraist alrist larist ialrst ailrst ilarst liarst alirst lairst riaslt iraslt raislt arislt iarslt airslt risalt irsalt rsialt srialt isralt siralt rasilt arsilt rsailt srailt asrilt sarilt iasrlt aisrlt isarlt siarlt asirlt sairlt rilsat irlsat rlisat lrisat ilrsat lirsat rislat irslat rsilat srilat isrlat sirlat rlsiat lrsiat rsliat srliat lsriat slriat ilsrat lisrat islrat silrat lsirat slirat ralsit arlsit rlasit lrasit alrsit larsit raslit arslit rsalit sralit asrlit sarlit rlsait lrsait rslait srlait lsrait slrait alsrit lasrit aslrit salrit lsarit slarit ialsrt ailsrt ilasrt liasrt alisrt laisrt iaslrt aislrt isalrt sialrt asilrt sailrt ilsart lisart islart silart lsiart sliart alsirt lasirt aslirt salirt lsairt slairt
Note: these 'words' (valid or invalid) are all the permutations of the word trials. These words are obtained by scrambling the letters in trials.