speans pseans sepans espans pesans epsans spaens psaens sapens aspens pasens apsens seapns esapns saepns asepns easpns aespns peasns epasns paesns apesns eapsns aepsns spenas psenas sepnas espnas pesnas epsnas spneas psneas snpeas nspeas pnseas npseas senpas esnpas snepas nsepas enspas nespas pensas epnsas pnesas npesas enpsas nepsas spanes psanes sapnes aspnes pasnes apsnes spnaes psnaes snpaes nspaes pnsaes npsaes sanpes asnpes snapes nsapes anspes naspes panses apnses pnases npases anpses napses seanps esanps saenps asenps easnps aesnps senaps esnaps sneaps nseaps ensaps nesaps saneps asneps snaeps nsaeps anseps naseps eansps aensps enasps neasps anesps naesps peanss epanss paenss apenss eapnss aepnss penass epnass pneass npeass enpass nepass paness apness pnaess npaess anpess napess eanpss aenpss enapss neapss anepss naepss speasn pseasn sepasn espasn pesasn epsasn spaesn psaesn sapesn aspesn pasesn apsesn seapsn esapsn saepsn asepsn easpsn aespsn peassn epassn paessn apessn eapssn aepssn spesan psesan sepsan espsan pessan epssan spsean pssean sspean sspean pssean spsean sespan esspan ssepan ssepan esspan sespan pessan epssan psesan spesan espsan sepsan spasen psasen sapsen aspsen passen apssen spsaen pssaen sspaen sspaen pssaen spsaen saspen asspen ssapen ssapen asspen saspen passen apssen psasen spasen aspsen sapsen seaspn esaspn saespn asespn easspn aesspn sesapn essapn sseapn sseapn essapn sesapn sasepn assepn ssaepn ssaepn assepn sasepn easspn aesspn esaspn seaspn asespn saespn peassn epassn paessn apessn eapssn aepssn pesasn epsasn pseasn speasn espasn sepasn pasesn apsesn psaesn spaesn aspesn sapesn easpsn aespsn esapsn seapsn asepsn saepsn spensa psensa sepnsa espnsa pesnsa epsnsa spnesa psnesa snpesa nspesa pnsesa npsesa senpsa esnpsa snepsa nsepsa enspsa nespsa penssa epnssa pnessa npessa enpssa nepssa spesna psesna sepsna espsna pessna epssna spsena pssena sspena sspena pssena spsena sespna esspna ssepna ssepna esspna sespna pessna epssna psesna spesna espsna sepsna spnsea psnsea snpsea nspsea pnssea npssea spsnea pssnea sspnea sspnea pssnea spsnea snspea nsspea ssnpea ssnpea nsspea snspea pnssea npssea psnsea spnsea nspsea snpsea senspa esnspa snespa nsespa ensspa nesspa sesnpa essnpa ssenpa ssenpa essnpa sesnpa snsepa nssepa ssnepa ssnepa nssepa snsepa ensspa nesspa esnspa senspa nsespa snespa penssa epnssa pnessa npessa enpssa nepssa pesnsa epsnsa psensa spensa espnsa sepnsa pnsesa npsesa psnesa spnesa nspesa snpesa enspsa nespsa esnpsa senpsa nsepsa snepsa spanse psanse sapnse aspnse pasnse apsnse spnase psnase snpase nspase pnsase npsase sanpse asnpse snapse nsapse anspse naspse pansse apnsse pnasse npasse anpsse napsse spasne psasne sapsne aspsne passne apssne spsane pssane sspane sspane pssane spsane saspne asspne ssapne ssapne asspne saspne passne apssne psasne spasne aspsne sapsne spnsae psnsae snpsae nspsae pnssae npssae spsnae pssnae sspnae sspnae pssnae spsnae snspae nsspae ssnpae ssnpae nsspae snspae pnssae npssae psnsae spnsae nspsae snpsae sanspe asnspe snaspe nsaspe ansspe nasspe sasnpe assnpe ssanpe ssanpe assnpe sasnpe snsape nssape ssnape ssnape nssape snsape ansspe nasspe asnspe sanspe nsaspe snaspe pansse apnsse pnasse npasse anpsse napsse pasnse apsnse psanse spanse aspnse sapnse pnsase npsase psnase spnase nspase snpase anspse naspse asnpse sanpse nsapse snapse seansp esansp saensp asensp easnsp aesnsp senasp esnasp sneasp nseasp ensasp nesasp sanesp asnesp snaesp nsaesp ansesp nasesp eanssp aenssp enassp neassp anessp naessp seasnp esasnp saesnp asesnp eassnp aessnp sesanp essanp sseanp sseanp essanp sesanp sasenp assenp ssaenp ssaenp assenp sasenp eassnp aessnp esasnp seasnp asesnp saesnp sensap esnsap snesap nsesap enssap nessap sesnap essnap ssenap ssenap essnap sesnap snseap nsseap ssneap ssneap nsseap snseap enssap nessap esnsap sensap nsesap snesap sansep asnsep snasep nsasep anssep nassep sasnep assnep ssanep ssanep assnep sasnep snsaep nssaep ssnaep ssnaep nssaep snsaep anssep nassep asnsep sansep nsasep snasep eanssp aenssp enassp neassp anessp naessp easnsp aesnsp esansp seansp asensp saensp ensasp nesasp esnasp senasp nseasp sneasp ansesp nasesp asnesp sanesp nsaesp snaesp peanss epanss paenss apenss eapnss aepnss penass epnass pneass npeass enpass nepass paness apness pnaess npaess anpess napess eanpss aenpss enapss neapss anepss naepss peasns epasns paesns apesns eapsns aepsns pesans epsans pseans speans espans sepans pasens apsens psaens spaens aspens sapens easpns aespns esapns seapns asepns saepns pensas epnsas pnesas npesas enpsas nepsas pesnas epsnas psenas spenas espnas sepnas pnseas npseas psneas spneas nspeas snpeas enspas nespas esnpas senpas nsepas snepas panses apnses pnases npases anpses napses pasnes apsnes psanes spanes aspnes sapnes pnsaes npsaes psnaes spnaes nspaes snpaes anspes naspes asnpes sanpes nsapes snapes eansps aensps enasps neasps anesps naesps easnps aesnps esanps seanps asenps saenps ensaps nesaps esnaps senaps nseaps sneaps anseps naseps asneps saneps nsaeps snaeps
Note: these 'words' (valid or invalid) are all the permutations of the word speans. These words are obtained by scrambling the letters in speans.