asfod safod afsod fasod sfaod fsaod asofd saofd aosfd oasfd soafd osafd afosd faosd aofsd oafsd foasd ofasd sfoad fsoad sofad osfad fosad ofsad asfdo safdo afsdo fasdo sfado fsado asdfo sadfo adsfo dasfo sdafo dsafo afdso fadso adfso dafso fdaso dfaso sfdao fsdao sdfao dsfao fdsao dfsao asodf saodf aosdf oasdf soadf osadf asdof sadof adsof dasof sdaof dsaof aodsf oadsf adosf daosf odasf doasf sodaf osdaf sdoaf dsoaf odsaf dosaf afods faods aofds oafds foads ofads afdos fados adfos dafos fdaos dfaos aodfs oadfs adofs daofs odafs doafs fodas ofdas fdoas dfoas odfas dofas sfoda fsoda sofda osfda fosda ofsda sfdoa fsdoa sdfoa dsfoa fdsoa dfsoa sodfa osdfa sdofa dsofa odsfa dosfa fodsa ofdsa fdosa dfosa odfsa dofsa
Note: these 'words' (valid or invalid) are all the permutations of the word asfod. These words are obtained by scrambling the letters in asfod.