reists erists riests irests eirsts iersts resits ersits rseits sreits esrits serits risets irsets rsiets sriets isrets sirets eisrts iesrts esirts seirts iserts sierts reitss eritss rietss iretss eirtss iertss retiss ertiss rteiss treiss etriss teriss ritess irtess rtiess triess itress tiress eitrss ietrss etirss teirss iterss tierss restis erstis rsetis sretis esrtis sertis retsis ertsis rtesis tresis etrsis tersis rsteis srteis rtseis trseis streis tsreis estris setris etsris tesris steris tseris ristes irstes rsites srites isrtes sirtes ritses irtses rtises trises itrses tirses rsties srties rtsies trsies stries tsries istres sitres itsres tisres stires tsires eistrs iestrs esitrs seitrs isetrs sietrs eitsrs ietsrs etisrs teisrs itesrs tiesrs estirs setirs etsirs tesirs steirs tseirs isters siters itsers tisers stiers tsiers reisst erisst riesst iresst eirsst iersst resist ersist rseist sreist esrist serist risest irsest rsiest sriest isrest sirest eisrst iesrst esirst seirst iserst sierst reisst erisst riesst iresst eirsst iersst resist ersist rseist sreist esrist serist risest irsest rsiest sriest isrest sirest eisrst iesrst esirst seirst iserst sierst ressit erssit rsesit sresit esrsit sersit ressit erssit rsesit sresit esrsit sersit rsseit srseit rsseit srseit ssreit ssreit essrit sesrit essrit sesrit sserit sserit risset irsset rsiset sriset isrset sirset risset irsset rsiset sriset isrset sirset rssiet srsiet rssiet srsiet ssriet ssriet issret sisret issret sisret ssiret ssiret eissrt iessrt esisrt seisrt isesrt siesrt eissrt iessrt esisrt seisrt isesrt siesrt essirt sesirt essirt sesirt sseirt sseirt issert sisert issert sisert ssiert ssiert reitss eritss rietss iretss eirtss iertss retiss ertiss rteiss treiss etriss teriss ritess irtess rtiess triess itress tiress eitrss ietrss etirss teirss iterss tierss reists erists riests irests eirsts iersts resits ersits rseits sreits esrits serits risets irsets rsiets sriets isrets sirets eisrts iesrts esirts seirts iserts sierts retsis ertsis rtesis tresis etrsis tersis restis erstis rsetis sretis esrtis sertis rtseis trseis rsteis srteis tsreis streis etsris tesris estris setris tseris steris ritses irtses rtises trises itrses tirses ristes irstes rsites srites isrtes sirtes rtsies trsies rsties srties tsries stries itsres tisres istres sitres tsires stires eitsrs ietsrs etisrs teisrs itesrs tiesrs eistrs iestrs esitrs seitrs isetrs sietrs etsirs tesirs estirs setirs tseirs steirs itsers tisers isters siters tsiers stiers restsi erstsi rsetsi sretsi esrtsi sertsi retssi ertssi rtessi tressi etrssi terssi rstesi srtesi rtsesi trsesi stresi tsresi estrsi setrsi etsrsi tesrsi stersi tsersi ressti erssti rsesti sresti esrsti sersti ressti erssti rsesti sresti esrsti sersti rsseti srseti rsseti srseti ssreti ssreti essrti sesrti essrti sesrti sserti sserti retssi ertssi rtessi tressi etrssi terssi restsi erstsi rsetsi sretsi esrtsi sertsi rtsesi trsesi rstesi srtesi tsresi stresi etsrsi tesrsi estrsi setrsi tsersi stersi rstsei srtsei rtssei trssei strsei tsrsei rsstei srstei rsstei srstei ssrtei ssrtei rtssei trssei rstsei srtsei tsrsei strsei stsrei tssrei sstrei sstrei tssrei stsrei estsri setsri etssri tessri stesri tsesri esstri sestri esstri sestri ssetri ssetri etssri tessri estsri setsri tsesri stesri stseri tsseri ssteri ssteri tsseri stseri ristse irstse rsitse sritse isrtse sirtse ritsse irtsse rtisse trisse itrsse tirsse rstise srtise rtsise trsise strise tsrise istrse sitrse itsrse tisrse stirse tsirse risste irsste rsiste sriste isrste sirste risste irsste rsiste sriste isrste sirste rssite srsite rssite srsite ssrite ssrite issrte sisrte issrte sisrte ssirte ssirte ritsse irtsse rtisse trisse itrsse tirsse ristse irstse rsitse sritse isrtse sirtse rtsise trsise rstise srtise tsrise strise itsrse tisrse istrse sitrse tsirse stirse rstsie srtsie rtssie trssie strsie tsrsie rsstie srstie rsstie srstie ssrtie ssrtie rtssie trssie rstsie srtsie tsrsie strsie stsrie tssrie sstrie sstrie tssrie stsrie istsre sitsre itssre tissre stisre tsisre isstre sistre isstre sistre ssitre ssitre itssre tissre istsre sitsre tsisre stisre stsire tssire sstire sstire tssire stsire eistsr iestsr esitsr seitsr isetsr sietsr eitssr ietssr etissr teissr itessr tiessr estisr setisr etsisr tesisr steisr tseisr istesr sitesr itsesr tisesr stiesr tsiesr eisstr iesstr esistr seistr isestr siestr eisstr iesstr esistr seistr isestr siestr essitr sesitr essitr sesitr sseitr sseitr issetr sisetr issetr sisetr ssietr ssietr eitssr ietssr etissr teissr itessr tiessr eistsr iestsr esitsr seitsr isetsr sietsr etsisr tesisr estisr setisr tseisr steisr itsesr tisesr istesr sitesr tsiesr stiesr estsir setsir etssir tessir stesir tsesir esstir sestir esstir sestir ssetir ssetir etssir tessir estsir setsir tsesir stesir stseir tsseir ssteir ssteir tsseir stseir istser sitser itsser tisser stiser tsiser isster sister isster sister ssiter ssiter itsser tisser istser sitser tsiser stiser stsier tssier sstier sstier tssier stsier
Note: these 'words' (valid or invalid) are all the permutations of the word reists. These words are obtained by scrambling the letters in reists.