goffs ogffs gfofs fgofs ofgfs fogfs goffs ogffs gfofs fgofs ofgfs fogfs gffos fgfos gffos fgfos ffgos ffgos offgs fofgs offgs fofgs ffogs ffogs gofsf ogfsf gfosf fgosf ofgsf fogsf gosff ogsff gsoff sgoff osgff sogff gfsof fgsof gsfof sgfof fsgof sfgof ofsgf fosgf osfgf sofgf fsogf sfogf gofsf ogfsf gfosf fgosf ofgsf fogsf gosff ogsff gsoff sgoff osgff sogff gfsof fgsof gsfof sgfof fsgof sfgof ofsgf fosgf osfgf sofgf fsogf sfogf gffso fgfso gffso fgfso ffgso ffgso gfsfo fgsfo gsffo sgffo fsgfo sfgfo gfsfo fgsfo gsffo sgffo fsgfo sfgfo ffsgo ffsgo fsfgo sffgo fsfgo sffgo offsg fofsg offsg fofsg ffosg ffosg ofsfg fosfg osffg soffg fsofg sfofg ofsfg fosfg osffg soffg fsofg sfofg ffsog ffsog fsfog sffog fsfog sffog
Note: these 'words' (valid or invalid) are all the permutations of the word goffs. These words are obtained by scrambling the letters in goffs.