duolog udolog doulog odulog uodlog oudlog duloog udloog dluoog lduoog uldoog ludoog doluog odluog dlouog ldouog olduog loduog uoldog ouldog ulodog luodog oludog loudog duoolg udoolg douolg oduolg uodolg oudolg duoolg udoolg douolg oduolg uodolg oudolg dooulg odoulg dooulg odoulg oodulg oodulg uoodlg ouodlg uoodlg ouodlg ooudlg ooudlg duloog udloog dluoog lduoog uldoog ludoog duolog udolog doulog odulog uodlog oudlog dlouog ldouog doluog odluog loduog olduog ulodog luodog uoldog ouldog loudog oludog doloug odloug dlooug ldooug oldoug lodoug doolug odolug doolug odolug oodlug oodlug dlooug ldooug doloug odloug lodoug oldoug olodug loodug ooldug ooldug loodug olodug uolodg oulodg uloodg luoodg oluodg louodg uooldg ouoldg uooldg ouoldg oouldg oouldg uloodg luoodg uolodg oulodg louodg oluodg oloudg looudg ooludg ooludg looudg oloudg duolgo udolgo doulgo odulgo uodlgo oudlgo dulogo udlogo dluogo lduogo uldogo ludogo dolugo odlugo dlougo ldougo oldugo lodugo uoldgo ouldgo ulodgo luodgo oludgo loudgo duoglo udoglo douglo oduglo uodglo oudglo dugolo udgolo dguolo gduolo ugdolo gudolo dogulo odgulo dgoulo gdoulo ogdulo godulo uogdlo ougdlo ugodlo guodlo ogudlo goudlo dulgoo udlgoo dlugoo ldugoo uldgoo ludgoo dugloo udgloo dguloo gduloo ugdloo gudloo dlguoo ldguoo dgluoo gdluoo lgduoo glduoo ulgdoo lugdoo ugldoo guldoo lgudoo gludoo dolguo odlguo dloguo ldoguo oldguo lodguo dogluo odgluo dgoluo gdoluo ogdluo godluo dlgouo ldgouo dglouo gdlouo lgdouo gldouo olgduo logduo oglduo golduo lgoduo gloduo uolgdo oulgdo ulogdo luogdo olugdo lougdo uogldo ougldo ugoldo guoldo oguldo gouldo ulgodo lugodo uglodo gulodo lguodo gluodo olgudo logudo ogludo goludo lgoudo gloudo duoogl udoogl douogl oduogl uodogl oudogl duoogl udoogl douogl oduogl uodogl oudogl doougl odougl doougl odougl oodugl oodugl uoodgl ouodgl uoodgl ouodgl ooudgl ooudgl duogol udogol dougol odugol uodgol oudgol dugool udgool dguool gduool ugdool gudool doguol odguol dgouol gdouol ogduol goduol uogdol ougdol ugodol guodol ogudol goudol duogol udogol dougol odugol uodgol oudgol dugool udgool dguool gduool ugdool gudool doguol odguol dgouol gdouol ogduol goduol uogdol ougdol ugodol guodol ogudol goudol doogul odogul doogul odogul oodgul oodgul dogoul odgoul dgooul gdooul ogdoul godoul dogoul odgoul dgooul gdooul ogdoul godoul oogdul oogdul ogodul goodul ogodul goodul uoogdl ouogdl uoogdl ouogdl oougdl oougdl uogodl ougodl ugoodl guoodl oguodl gouodl uogodl ougodl ugoodl guoodl oguodl gouodl oogudl oogudl ogoudl gooudl ogoudl gooudl dulogo udlogo dluogo lduogo uldogo ludogo duolgo udolgo doulgo odulgo uodlgo oudlgo dlougo ldougo dolugo odlugo lodugo oldugo ulodgo luodgo uoldgo ouldgo loudgo oludgo dulgoo udlgoo dlugoo ldugoo uldgoo ludgoo dugloo udgloo dguloo gduloo ugdloo gudloo dlguoo ldguoo dgluoo gdluoo lgduoo glduoo ulgdoo lugdoo ugldoo guldoo lgudoo gludoo duoglo udoglo douglo oduglo uodglo oudglo dugolo udgolo dguolo gduolo ugdolo gudolo dogulo odgulo dgoulo gdoulo ogdulo godulo uogdlo ougdlo ugodlo guodlo ogudlo goudlo dloguo ldoguo dolguo odlguo lodguo oldguo dlgouo ldgouo dglouo gdlouo lgdouo gldouo dogluo odgluo dgoluo gdoluo ogdluo godluo logduo olgduo lgoduo gloduo oglduo golduo ulogdo luogdo uolgdo oulgdo lougdo olugdo ulgodo lugodo uglodo gulodo lguodo gluodo uogldo ougldo ugoldo guoldo oguldo gouldo logudo olgudo lgoudo gloudo ogludo goludo dologu odlogu dloogu ldoogu oldogu lodogu doolgu odolgu doolgu odolgu oodlgu oodlgu dloogu ldoogu dologu odlogu lodogu oldogu olodgu loodgu ooldgu ooldgu loodgu olodgu dolgou odlgou dlogou ldogou oldgou lodgou doglou odglou dgolou gdolou ogdlou godlou dlgoou ldgoou dgloou gdloou lgdoou gldoou olgdou logdou ogldou goldou lgodou glodou dooglu odoglu dooglu odoglu oodglu oodglu dogolu odgolu dgoolu gdoolu ogdolu godolu dogolu odgolu dgoolu gdoolu ogdolu godolu oogdlu oogdlu ogodlu goodlu ogodlu goodlu dlogou ldogou dolgou odlgou lodgou oldgou dlgoou ldgoou dgloou gdloou lgdoou gldoou doglou odglou dgolou gdolou ogdlou godlou logdou olgdou lgodou glodou ogldou goldou ologdu loogdu oolgdu oolgdu loogdu ologdu olgodu logodu oglodu golodu lgoodu gloodu oogldu oogldu ogoldu gooldu ogoldu gooldu logodu olgodu lgoodu gloodu oglodu golodu uologd oulogd uloogd luoogd oluogd louogd uoolgd ouolgd uoolgd ouolgd ooulgd ooulgd uloogd luoogd uologd oulogd louogd oluogd olougd loougd oolugd oolugd loougd olougd uolgod oulgod ulogod luogod olugod lougod uoglod ouglod ugolod guolod ogulod goulod ulgood lugood uglood gulood lguood gluood olguod loguod ogluod goluod lgouod glouod uoogld ouogld uoogld ouogld oougld oougld uogold ougold ugoold guoold oguold gouold uogold ougold ugoold guoold oguold gouold ooguld ooguld ogould goould ogould goould ulogod luogod uolgod oulgod lougod olugod ulgood lugood uglood gulood lguood gluood uoglod ouglod ugolod guolod ogulod goulod loguod olguod lgouod glouod ogluod goluod ologud loogud oolgud oolgud loogud ologud olgoud logoud ogloud goloud lgooud glooud ooglud ooglud ogolud goolud ogolud goolud logoud olgoud lgooud glooud ogloud goloud
Note: these 'words' (valid or invalid) are all the permutations of the word duolog. These words are obtained by scrambling the letters in duolog.