tharm htarm tahrm athrm hatrm ahtrm thram htram trham rtham hrtam rhtam tarhm atrhm trahm rtahm arthm rathm hartm ahrtm hratm rhatm arhtm rahtm thamr htamr tahmr athmr hatmr ahtmr thmar htmar tmhar mthar hmtar mhtar tamhr atmhr tmahr mtahr amthr mathr hamtr ahmtr hmatr mhatr amhtr mahtr thrma htrma trhma rthma hrtma rhtma thmra htmra tmhra mthra hmtra mhtra trmha rtmha tmrha mtrha rmtha mrtha hrmta rhmta hmrta mhrta rmhta mrhta tarmh atrmh tramh rtamh artmh ratmh tamrh atmrh tmarh mtarh amtrh matrh trmah rtmah tmrah mtrah rmtah mrtah armth ramth amrth marth rmath mrath harmt ahrmt hramt rhamt arhmt rahmt hamrt ahmrt hmart mhart amhrt mahrt hrmat rhmat hmrat mhrat rmhat mrhat armht ramht amrht marht rmaht mraht
Note: these 'words' (valid or invalid) are all the permutations of the word tharm. These words are obtained by scrambling the letters in tharm.