tbogo btogo tobgo otbgo botgo obtgo tbgoo btgoo tgboo gtboo bgtoo gbtoo togbo otgbo tgobo gtobo ogtbo gotbo bogto obgto bgoto gboto ogbto gobto tboog btoog tobog otbog botog obtog tboog btoog tobog otbog botog obtog toobg otobg toobg otobg ootbg ootbg bootg obotg bootg obotg oobtg oobtg tbgoo btgoo tgboo gtboo bgtoo gbtoo tbogo btogo tobgo otbgo botgo obtgo tgobo gtobo togbo otgbo gotbo ogtbo bgoto gboto bogto obgto gobto ogbto togob otgob tgoob gtoob ogtob gotob toogb otogb toogb otogb ootgb ootgb tgoob gtoob togob otgob gotob ogtob ogotb gootb oogtb oogtb gootb ogotb bogot obgot bgoot gboot ogbot gobot boogt obogt boogt obogt oobgt oobgt bgoot gboot bogot obgot gobot ogbot ogobt goobt oogbt oogbt goobt ogobt
Note: these 'words' (valid or invalid) are all the permutations of the word tbogo. These words are obtained by scrambling the letters in tbogo.