wilds iwlds wlids lwids ilwds liwds widls iwdls wdils dwils idwls diwls wldis lwdis wdlis dwlis ldwis dlwis ildws lidws idlws dilws ldiws dliws wilsd iwlsd wlisd lwisd ilwsd liwsd wisld iwsld wsild swild iswld siwld wlsid lwsid wslid swlid lswid slwid ilswd liswd islwd silwd lsiwd sliwd widsl iwdsl wdisl dwisl idwsl diwsl wisdl iwsdl wsidl swidl iswdl siwdl wdsil dwsil wsdil swdil dswil sdwil idswl diswl isdwl sidwl dsiwl sdiwl wldsi lwdsi wdlsi dwlsi ldwsi dlwsi wlsdi lwsdi wsldi swldi lswdi slwdi wdsli dwsli wsdli swdli dswli sdwli ldswi dlswi lsdwi sldwi dslwi sdlwi ildsw lidsw idlsw dilsw ldisw dlisw ilsdw lisdw isldw sildw lsidw slidw idslw dislw isdlw sidlw dsilw sdilw ldsiw dlsiw lsdiw sldiw dsliw sdliw
Note: these 'words' (valid or invalid) are all the permutations of the word wilds. These words are obtained by scrambling the letters in wilds.