ousel uosel osuel souel usoel suoel ouesl uoesl oeusl eousl ueosl euosl oseul soeul oesul eosul seoul esoul useol sueol uesol eusol seuol esuol ousle uosle osule soule usole suole oulse uolse oluse louse ulose luose oslue solue olsue losue sloue lsoue usloe suloe ulsoe lusoe sluoe lsuoe ouels uoels oeuls eouls ueols euols oules uoles olues loues uloes luoes oelus eolus oleus loeus elous leous uelos eulos uleos lueos eluos leuos oselu soelu oeslu eoslu seolu esolu osleu soleu olseu loseu sloeu lsoeu oelsu eolsu olesu loesu elosu leosu selou eslou sleou lseou elsou lesou uselo suelo ueslo euslo seulo esulo usleo suleo ulseo luseo slueo lsueo uelso eulso uleso lueso eluso leuso seluo esluo sleuo lseuo elsuo lesuo
Note: these 'words' (valid or invalid) are all the permutations of the word ousel. These words are obtained by scrambling the letters in ousel.