swile wsile siwle iswle wisle iwsle swlie wslie slwie lswie wlsie lwsie silwe islwe sliwe lsiwe ilswe liswe wilse iwlse wlise lwise ilwse liwse swiel wsiel siwel iswel wisel iwsel sweil wseil sewil eswil wesil ewsil siewl isewl seiwl esiwl ieswl eiswl wiesl iwesl weisl ewisl iewsl eiwsl swlei wslei slwei lswei wlsei lwsei sweli wseli sewli eswli wesli ewsli slewi lsewi selwi eslwi leswi elswi wlesi lwesi welsi ewlsi lewsi elwsi silew islew sliew lsiew ilsew lisew sielw iselw seilw esilw ieslw eislw sleiw lseiw seliw esliw lesiw elsiw ilesw liesw ielsw eilsw leisw elisw wiles iwles wlies lwies ilwes liwes wiels iwels weils ewils iewls eiwls wleis lweis welis ewlis lewis elwis ilews liews ielws eilws leiws eliws
Note: these 'words' (valid or invalid) are all the permutations of the word swile. These words are obtained by scrambling the letters in swile.