halon ahlon hlaon lhaon alhon lahon haoln aholn hoaln ohaln aohln oahln hloan lhoan holan ohlan lohan olhan alohn laohn aolhn oalhn loahn olahn halno ahlno hlano lhano alhno lahno hanlo ahnlo hnalo nhalo anhlo nahlo hlnao lhnao hnlao nhlao lnhao nlhao alnho lanho anlho nalho lnaho nlaho haonl ahonl hoanl ohanl aohnl oahnl hanol ahnol hnaol nhaol anhol nahol honal ohnal hnoal nhoal onhal nohal aonhl oanhl anohl naohl onahl noahl hlona lhona holna ohlna lohna olhna hlnoa lhnoa hnloa nhloa lnhoa nlhoa honla ohnla hnola nhola onhla nohla lonha olnha lnoha nloha onlha nolha alonh laonh aolnh oalnh loanh olanh alnoh lanoh anloh naloh lnaoh nlaoh aonlh oanlh anolh naolh onalh noalh lonah olnah lnoah nloah onlah nolah
Note: these 'words' (valid or invalid) are all the permutations of the word halon. These words are obtained by scrambling the letters in halon.