gonef ognef gnoef ngoef ongef nogef goenf ogenf geonf egonf oegnf eognf gneof ngeof genof egnof negof engof onegf noegf oengf eongf neogf enogf gonfe ognfe gnofe ngofe ongfe nogfe gofne ogfne gfone fgone ofgne fogne gnfoe ngfoe gfnoe fgnoe nfgoe fngoe onfge nofge ofnge fonge nfoge fnoge goefn ogefn geofn egofn oegfn eogfn gofen ogfen gfoen fgoen ofgen fogen gefon egfon gfeon fgeon efgon fegon oefgn eofgn ofegn foegn efogn feogn gnefo ngefo genfo egnfo negfo engfo gnfeo ngfeo gfneo fgneo nfgeo fngeo gefno egfno gfeno fgeno efgno fegno nefgo enfgo nfego fnego efngo fengo onefg noefg oenfg eonfg neofg enofg onfeg nofeg ofneg foneg nfoeg fnoeg oefng eofng ofeng foeng efong feong nefog enfog nfeog fneog efnog fenog
Note: these 'words' (valid or invalid) are all the permutations of the word gonef. These words are obtained by scrambling the letters in gonef.