riggs irggs rgigs grigs igrgs girgs riggs irggs rgigs grigs igrgs girgs rggis grgis rggis grgis ggris ggris iggrs gigrs iggrs gigrs ggirs ggirs rigsg irgsg rgisg grisg igrsg girsg risgg irsgg rsigg srigg isrgg sirgg rgsig grsig rsgig srgig gsrig sgrig igsrg gisrg isgrg sigrg gsirg sgirg rigsg irgsg rgisg grisg igrsg girsg risgg irsgg rsigg srigg isrgg sirgg rgsig grsig rsgig srgig gsrig sgrig igsrg gisrg isgrg sigrg gsirg sgirg rggsi grgsi rggsi grgsi ggrsi ggrsi rgsgi grsgi rsggi srggi gsrgi sgrgi rgsgi grsgi rsggi srggi gsrgi sgrgi ggsri ggsri gsgri sggri gsgri sggri iggsr gigsr iggsr gigsr ggisr ggisr igsgr gisgr isggr siggr gsigr sgigr igsgr gisgr isggr siggr gsigr sgigr ggsir ggsir gsgir sggir gsgir sggir
Note: these 'words' (valid or invalid) are all the permutations of the word riggs. These words are obtained by scrambling the letters in riggs.