flogs lfogs folgs oflgs lofgs olfgs flgos lfgos fglos gflos lgfos glfos fogls ofgls fgols gfols ogfls gofls logfs olgfs lgofs glofs oglfs golfs flosg lfosg folsg oflsg lofsg olfsg flsog lfsog fslog sflog lsfog slfog foslg ofslg fsolg sfolg osflg soflg losfg olsfg lsofg slofg oslfg solfg flgso lfgso fglso gflso lgfso glfso flsgo lfsgo fslgo sflgo lsfgo slfgo fgslo gfslo fsglo sfglo gsflo sgflo lgsfo glsfo lsgfo slgfo gslfo sglfo fogsl ofgsl fgosl gfosl ogfsl gofsl fosgl ofsgl fsogl sfogl osfgl sofgl fgsol gfsol fsgol sfgol gsfol sgfol ogsfl gosfl osgfl sogfl gsofl sgofl logsf olgsf lgosf glosf oglsf golsf losgf olsgf lsogf slogf oslgf solgf lgsof glsof lsgof slgof gslof sglof ogslf goslf osglf soglf gsolf sgolf
Note: these 'words' (valid or invalid) are all the permutations of the word flogs. These words are obtained by scrambling the letters in flogs.