serran esrran sreran rseran ersran resran serran esrran sreran rseran ersran resran srrean rsrean srrean rsrean rrsean rrsean errsan rersan errsan rersan rresan rresan serarn esrarn srearn rsearn ersarn resarn searrn esarrn saerrn aserrn easrrn aesrrn sraern rsaern sarern asrern rasern arsern erasrn reasrn earsrn aersrn raesrn aresrn serarn esrarn srearn rsearn ersarn resarn searrn esarrn saerrn aserrn easrrn aesrrn sraern rsaern sarern asrern rasern arsern erasrn reasrn earsrn aersrn raesrn aresrn srraen rsraen srraen rsraen rrsaen rrsaen sraren rsaren sarren asrren rasren arsren sraren rsaren sarren asrren rasren arsren rrasen rrasen rarsen arrsen rarsen arrsen errasn rerasn errasn rerasn rreasn rreasn erarsn rearsn earrsn aerrsn raersn arersn erarsn rearsn earrsn aerrsn raersn arersn rraesn rraesn raresn arresn raresn arresn serrna esrrna srerna rserna ersrna resrna serrna esrrna srerna rserna ersrna resrna srrena rsrena srrena rsrena rrsena rrsena errsna rersna errsna rersna rresna rresna sernra esrnra srenra rsenra ersnra resnra senrra esnrra snerra nserra ensrra nesrra srnera rsnera snrera nsrera rnsera nrsera ernsra rensra enrsra nersra rnesra nresra sernra esrnra srenra rsenra ersnra resnra senrra esnrra snerra nserra ensrra nesrra srnera rsnera snrera nsrera rnsera nrsera ernsra rensra enrsra nersra rnesra nresra srrnea rsrnea srrnea rsrnea rrsnea rrsnea srnrea rsnrea snrrea nsrrea rnsrea nrsrea srnrea rsnrea snrrea nsrrea rnsrea nrsrea rrnsea rrnsea rnrsea nrrsea rnrsea nrrsea errnsa rernsa errnsa rernsa rrensa rrensa ernrsa renrsa enrrsa nerrsa rnersa nrersa ernrsa renrsa enrrsa nerrsa rnersa nrersa rrnesa rrnesa rnresa nrresa rnresa nrresa seranr esranr sreanr rseanr ersanr resanr searnr esarnr saernr asernr easrnr aesrnr sraenr rsaenr sarenr asrenr rasenr arsenr erasnr reasnr earsnr aersnr raesnr aresnr sernar esrnar srenar rsenar ersnar resnar senrar esnrar snerar nserar ensrar nesrar srnear rsnear snrear nsrear rnsear nrsear ernsar rensar enrsar nersar rnesar nresar seanrr esanrr saenrr asenrr easnrr aesnrr senarr esnarr snearr nsearr ensarr nesarr sanerr asnerr snaerr nsaerr anserr naserr eansrr aensrr enasrr neasrr anesrr naesrr sraner rsaner sarner asrner rasner arsner srnaer rsnaer snraer nsraer rnsaer nrsaer sanrer asnrer snarer nsarer ansrer nasrer ranser arnser rnaser nraser anrser narser eransr reansr earnsr aernsr raensr arensr ernasr renasr enrasr nerasr rneasr nreasr eanrsr aenrsr enarsr nearsr anersr naersr ranesr arnesr rnaesr nraesr anresr naresr seranr esranr sreanr rseanr ersanr resanr searnr esarnr saernr asernr easrnr aesrnr sraenr rsaenr sarenr asrenr rasenr arsenr erasnr reasnr earsnr aersnr raesnr aresnr sernar esrnar srenar rsenar ersnar resnar senrar esnrar snerar nserar ensrar nesrar srnear rsnear snrear nsrear rnsear nrsear ernsar rensar enrsar nersar rnesar nresar seanrr esanrr saenrr asenrr easnrr aesnrr senarr esnarr snearr nsearr ensarr nesarr sanerr asnerr snaerr nsaerr anserr naserr eansrr aensrr enasrr neasrr anesrr naesrr sraner rsaner sarner asrner rasner arsner srnaer rsnaer snraer nsraer rnsaer nrsaer sanrer asnrer snarer nsarer ansrer nasrer ranser arnser rnaser nraser anrser narser eransr reansr earnsr aernsr raensr arensr ernasr renasr enrasr nerasr rneasr nreasr eanrsr aenrsr enarsr nearsr anersr naersr ranesr arnesr rnaesr nraesr anresr naresr srrane rsrane srrane rsrane rrsane rrsane srarne rsarne sarrne asrrne rasrne arsrne srarne rsarne sarrne asrrne rasrne arsrne rrasne rrasne rarsne arrsne rarsne arrsne srrnae rsrnae srrnae rsrnae rrsnae rrsnae srnrae rsnrae snrrae nsrrae rnsrae nrsrae srnrae rsnrae snrrae nsrrae rnsrae nrsrae rrnsae rrnsae rnrsae nrrsae rnrsae nrrsae sranre rsanre sarnre asrnre rasnre arsnre srnare rsnare snrare nsrare rnsare nrsare sanrre asnrre snarre nsarre ansrre nasrre ransre arnsre rnasre nrasre anrsre narsre sranre rsanre sarnre asrnre rasnre arsnre srnare rsnare snrare nsrare rnsare nrsare sanrre asnrre snarre nsarre ansrre nasrre ransre arnsre rnasre nrasre anrsre narsre rranse rranse rarnse arrnse rarnse arrnse rrnase rrnase rnrase nrrase rnrase nrrase ranrse arnrse rnarse nrarse anrrse narrse ranrse arnrse rnarse nrarse anrrse narrse errans rerans errans rerans rreans rreans erarns rearns earrns aerrns raerns arerns erarns rearns earrns aerrns raerns arerns rraens rraens rarens arrens rarens arrens errnas rernas errnas rernas rrenas rrenas ernras renras enrras nerras rneras nreras ernras renras enrras nerras rneras nreras rrneas rrneas rnreas nrreas rnreas nrreas eranrs reanrs earnrs aernrs raenrs arenrs ernars renars enrars nerars rnears nrears eanrrs aenrrs enarrs nearrs anerrs naerrs raners arners rnaers nraers anrers narers eranrs reanrs earnrs aernrs raenrs arenrs ernars renars enrars nerars rnears nrears eanrrs aenrrs enarrs nearrs anerrs naerrs raners arners rnaers nraers anrers narers rranes rranes rarnes arrnes rarnes arrnes rrnaes rrnaes rnraes nrraes rnraes nrraes ranres arnres rnares nrares anrres narres ranres arnres rnares nrares anrres narres
Note: these 'words' (valid or invalid) are all the permutations of the word serran. These words are obtained by scrambling the letters in serran.