gfoog fgoog gofog ogfog fogog ofgog gfoog fgoog gofog ogfog fogog ofgog goofg ogofg goofg ogofg oogfg oogfg foogg ofogg foogg ofogg oofgg oofgg gfogo fgogo gofgo ogfgo foggo ofggo gfgoo fggoo ggfoo ggfoo fggoo gfgoo gogfo oggfo ggofo ggofo oggfo gogfo foggo ofggo fgogo gfogo ogfgo gofgo gfogo fgogo gofgo ogfgo foggo ofggo gfgoo fggoo ggfoo ggfoo fggoo gfgoo gogfo oggfo ggofo ggofo oggfo gogfo foggo ofggo fgogo gfogo ogfgo gofgo googf ogogf googf ogogf ooggf ooggf gogof oggof ggoof ggoof oggof gogof gogof oggof ggoof ggoof oggof gogof ooggf ooggf ogogf googf ogogf googf foogg ofogg foogg ofogg oofgg oofgg fogog ofgog fgoog gfoog ogfog gofog fogog ofgog fgoog gfoog ogfog gofog oogfg oogfg ogofg goofg ogofg goofg
Note: these 'words' (valid or invalid) are all the permutations of the word gfoog. These words are obtained by scrambling the letters in gfoog.