unglo nuglo ugnlo gunlo ngulo gnulo unlgo nulgo ulngo lungo nlugo lnugo uglno gulno ulgno lugno gluno lguno ngluo gnluo nlguo lnguo glnuo lgnuo ungol nugol ugnol gunol nguol gnuol unogl nuogl uongl oungl nougl onugl ugonl guonl uognl ougnl gounl ogunl ngoul gnoul nogul ongul gonul ognul unlog nulog ulnog lunog nluog lnuog unolg nuolg uonlg ounlg noulg onulg ulong luong uolng oulng loung olung nloug lnoug nolug onlug lonug olnug uglon gulon ulgon lugon gluon lguon ugoln guoln uogln ougln gouln oguln ulogn luogn uolgn oulgn lougn olugn gloun lgoun golun oglun logun olgun nglou gnlou nlgou lngou glnou lgnou ngolu gnolu noglu onglu gonlu ognlu nlogu lnogu nolgu onlgu longu olngu glonu lgonu golnu oglnu lognu olgnu
Note: these 'words' (valid or invalid) are all the permutations of the word unglo. These words are obtained by scrambling the letters in unglo.