sarins asrins srains rsains arsins rasins sairns asirns siarns isarns aisrns iasrns srians rsians sirans israns risans irsans arisns raisns airsns iarsns riasns irasns sarnis asrnis sranis rsanis arsnis rasnis sanris asnris snaris nsaris ansris nasris srnais rsnais snrais nsrais rnsais nrsais arnsis ransis anrsis narsis rnasis nrasis sainrs asinrs sianrs isanrs aisnrs iasnrs sanirs asnirs snairs nsairs ansirs nasirs sinars isnars sniars nsiars insars nisars ainsrs iansrs anisrs naisrs inasrs niasrs srinas rsinas sirnas isrnas risnas irsnas srnias rsnias snrias nsrias rnsias nrsias sinras isnras sniras nsiras insras nisras rinsas irnsas rnisas nrisas inrsas nirsas arinss rainss airnss iarnss rianss iranss arniss raniss anriss nariss rnaiss nraiss ainrss ianrss anirss nairss inarss niarss rinass irnass rniass nriass inrass nirass sarisn asrisn sraisn rsaisn arsisn rasisn sairsn asirsn siarsn isarsn aisrsn iasrsn sriasn rsiasn sirasn israsn risasn irsasn arissn raissn airssn iarssn riassn irassn sarsin asrsin srasin rsasin arssin rassin sasrin assrin ssarin ssarin assrin sasrin srsain rssain ssrain ssrain rssain srsain arssin rassin asrsin sarsin rsasin srasin saisrn asisrn siasrn isasrn aissrn iassrn sasirn assirn ssairn ssairn assirn sasirn sisarn issarn ssiarn ssiarn issarn sisarn aissrn iassrn asisrn saisrn isasrn siasrn srisan rsisan sirsan isrsan rissan irssan srsian rssian ssrian ssrian rssian srsian sisran issran ssiran ssiran issran sisran rissan irssan rsisan srisan isrsan sirsan arissn raissn airssn iarssn riassn irassn arsisn rasisn asrisn sarisn rsaisn sraisn aisrsn iasrsn asirsn sairsn isarsn siarsn risasn irsasn rsiasn sriasn israsn sirasn sarnsi asrnsi sransi rsansi arsnsi rasnsi sanrsi asnrsi snarsi nsarsi ansrsi nasrsi srnasi rsnasi snrasi nsrasi rnsasi nrsasi arnssi ranssi anrssi narssi rnassi nrassi sarsni asrsni srasni rsasni arssni rassni sasrni assrni ssarni ssarni assrni sasrni srsani rssani ssrani ssrani rssani srsani arssni rassni asrsni sarsni rsasni srasni sansri asnsri snasri nsasri anssri nassri sasnri assnri ssanri ssanri assnri sasnri snsari nssari ssnari ssnari nssari snsari anssri nassri asnsri sansri nsasri snasri srnsai rsnsai snrsai nsrsai rnssai nrssai srsnai rssnai ssrnai ssrnai rssnai srsnai snsrai nssrai ssnrai ssnrai nssrai snsrai rnssai nrssai rsnsai srnsai nsrsai snrsai arnssi ranssi anrssi narssi rnassi nrassi arsnsi rasnsi asrnsi sarnsi rsansi sransi ansrsi nasrsi asnrsi sanrsi nsarsi snarsi rnsasi nrsasi rsnasi srnasi nsrasi snrasi sainsr asinsr siansr isansr aisnsr iasnsr sanisr asnisr snaisr nsaisr ansisr nasisr sinasr isnasr sniasr nsiasr insasr nisasr ainssr ianssr anissr naissr inassr niassr saisnr asisnr siasnr isasnr aissnr iassnr sasinr assinr ssainr ssainr assinr sasinr sisanr issanr ssianr ssianr issanr sisanr aissnr iassnr asisnr saisnr isasnr siasnr sansir asnsir snasir nsasir anssir nassir sasnir assnir ssanir ssanir assnir sasnir snsair nssair ssnair ssnair nssair snsair anssir nassir asnsir sansir nsasir snasir sinsar isnsar snisar nsisar inssar nissar sisnar issnar ssinar ssinar issnar sisnar snsiar nssiar ssniar ssniar nssiar snsiar inssar nissar isnsar sinsar nsisar snisar ainssr ianssr anissr naissr inassr niassr aisnsr iasnsr asinsr sainsr isansr siansr ansisr nasisr asnisr sanisr nsaisr snaisr insasr nisasr isnasr sinasr nsiasr sniasr srinsa rsinsa sirnsa isrnsa risnsa irsnsa srnisa rsnisa snrisa nsrisa rnsisa nrsisa sinrsa isnrsa snirsa nsirsa insrsa nisrsa rinssa irnssa rnissa nrissa inrssa nirssa srisna rsisna sirsna isrsna rissna irssna srsina rssina ssrina ssrina rssina srsina sisrna issrna ssirna ssirna issrna sisrna rissna irssna rsisna srisna isrsna sirsna srnsia rsnsia snrsia nsrsia rnssia nrssia srsnia rssnia ssrnia ssrnia rssnia srsnia snsria nssria ssnria ssnria nssria snsria rnssia nrssia rsnsia srnsia nsrsia snrsia sinsra isnsra snisra nsisra inssra nissra sisnra issnra ssinra ssinra issnra sisnra snsira nssira ssnira ssnira nssira snsira inssra nissra isnsra sinsra nsisra snisra rinssa irnssa rnissa nrissa inrssa nirssa risnsa irsnsa rsinsa srinsa isrnsa sirnsa rnsisa nrsisa rsnisa srnisa nsrisa snrisa insrsa nisrsa isnrsa sinrsa nsirsa snirsa arinss rainss airnss iarnss rianss iranss arniss raniss anriss nariss rnaiss nraiss ainrss ianrss anirss nairss inarss niarss rinass irnass rniass nriass inrass nirass arisns raisns airsns iarsns riasns irasns arsins rasins asrins sarins rsains srains aisrns iasrns asirns sairns isarns siarns risans irsans rsians srians israns sirans arnsis ransis anrsis narsis rnasis nrasis arsnis rasnis asrnis sarnis rsanis sranis ansris nasris asnris sanris nsaris snaris rnsais nrsais rsnais srnais nsrais snrais ainsrs iansrs anisrs naisrs inasrs niasrs aisnrs iasnrs asinrs sainrs isanrs sianrs ansirs nasirs asnirs sanirs nsairs snairs insars nisars isnars sinars nsiars sniars rinsas irnsas rnisas nrisas inrsas nirsas risnas irsnas rsinas srinas isrnas sirnas rnsias nrsias rsnias srnias nsrias snrias insras nisras isnras sinras nsiras sniras
Note: these 'words' (valid or invalid) are all the permutations of the word sarins. These words are obtained by scrambling the letters in sarins.