fango afngo fnago nfago anfgo nafgo fagno afgno fgano gfano agfno gafno fngao nfgao fgnao gfnao ngfao gnfao angfo nagfo agnfo ganfo ngafo gnafo fanog afnog fnaog nfaog anfog nafog faong afong foang ofang aofng oafng fnoag nfoag fonag ofnag nofag onfag anofg naofg aonfg oanfg noafg onafg fagon afgon fgaon gfaon agfon gafon faogn afogn foagn ofagn aofgn oafgn fgoan gfoan fogan ofgan gofan ogfan agofn gaofn aogfn oagfn goafn ogafn fngoa nfgoa fgnoa gfnoa ngfoa gnfoa fnoga nfoga fonga ofnga nofga onfga fgona gfona fogna ofgna gofna ogfna ngofa gnofa nogfa ongfa gonfa ognfa angof nagof agnof ganof ngaof gnaof anogf naogf aongf oangf noagf onagf agonf gaonf aognf oagnf goanf oganf ngoaf gnoaf nogaf ongaf gonaf ognaf
Note: these 'words' (valid or invalid) are all the permutations of the word fango. These words are obtained by scrambling the letters in fango.