twang wtang tawng atwng watng awtng twnag wtnag tnwag ntwag wntag nwtag tanwg atnwg tnawg ntawg antwg natwg wantg awntg wnatg nwatg anwtg nawtg twagn wtagn tawgn atwgn watgn awtgn twgan wtgan tgwan gtwan wgtan gwtan tagwn atgwn tgawn gtawn agtwn gatwn wagtn awgtn wgatn gwatn agwtn gawtn twnga wtnga tnwga ntwga wntga nwtga twgna wtgna tgwna gtwna wgtna gwtna tngwa ntgwa tgnwa gtnwa ngtwa gntwa wngta nwgta wgnta gwnta ngwta gnwta tangw atngw tnagw ntagw antgw natgw tagnw atgnw tganw gtanw agtnw gatnw tngaw ntgaw tgnaw gtnaw ngtaw gntaw angtw nagtw agntw gantw ngatw gnatw wangt awngt wnagt nwagt anwgt nawgt wagnt awgnt wgant gwant agwnt gawnt wngat nwgat wgnat gwnat ngwat gnwat angwt nagwt agnwt ganwt ngawt gnawt
Note: these 'words' (valid or invalid) are all the permutations of the word twang. These words are obtained by scrambling the letters in twang.