thong htong tohng othng hotng ohtng thnog htnog tnhog nthog hntog nhtog tonhg otnhg tnohg ntohg onthg nothg hontg ohntg hnotg nhotg onhtg nohtg thogn htogn tohgn othgn hotgn ohtgn thgon htgon tghon gthon hgton ghton toghn otghn tgohn gtohn ogthn gothn hogtn ohgtn hgotn ghotn oghtn gohtn thngo htngo tnhgo nthgo hntgo nhtgo thgno htgno tghno gthno hgtno ghtno tngho ntgho tgnho gtnho ngtho gntho hngto nhgto hgnto ghnto nghto gnhto tongh otngh tnogh ntogh ontgh notgh tognh otgnh tgonh gtonh ogtnh gotnh tngoh ntgoh tgnoh gtnoh ngtoh gntoh ongth nogth ognth gonth ngoth gnoth hongt ohngt hnogt nhogt onhgt nohgt hognt ohgnt hgont ghont oghnt gohnt hngot nhgot hgnot ghnot nghot gnhot onght noght ognht gonht ngoht gnoht
Note: these 'words' (valid or invalid) are all the permutations of the word thong. These words are obtained by scrambling the letters in thong.