grees rgees geres egres reges erges grees rgees geres egres reges erges geers egers geers egers eegrs eegrs reegs eregs reegs eregs eergs eergs grese rgese gerse egrse regse ergse grsee rgsee gsree sgree rsgee srgee gesre egsre gsere sgere esgre segre resge ersge rsege srege esrge serge grese rgese gerse egrse regse ergse grsee rgsee gsree sgree rsgee srgee gesre egsre gsere sgere esgre segre resge ersge rsege srege esrge serge geesr egesr geesr egesr eegsr eegsr geser egser gseer sgeer esger seger geser egser gseer sgeer esger seger eesgr eesgr esegr seegr esegr seegr reesg eresg reesg eresg eersg eersg reseg erseg rseeg sreeg esreg sereg reseg erseg rseeg sreeg esreg sereg eesrg eesrg eserg seerg eserg seerg
Note: these 'words' (valid or invalid) are all the permutations of the word grees. These words are obtained by scrambling the letters in grees.