downs odwns dwons wdons owdns wodns donws odnws dnows ndows ondws nodws dwnos wdnos dnwos ndwos wndos nwdos ownds wonds onwds nowds wnods nwods dowsn odwsn dwosn wdosn owdsn wodsn doswn odswn dsown sdown osdwn sodwn dwson wdson dswon sdwon wsdon swdon owsdn wosdn oswdn sowdn wsodn swodn donsw odnsw dnosw ndosw ondsw nodsw dosnw odsnw dsonw sdonw osdnw sodnw dnsow ndsow dsnow sdnow nsdow sndow onsdw nosdw osndw sondw nsodw snodw dwnso wdnso dnwso ndwso wndso nwdso dwsno wdsno dswno sdwno wsdno swdno dnswo ndswo dsnwo sdnwo nsdwo sndwo wnsdo nwsdo wsndo swndo nswdo snwdo ownsd wonsd onwsd nowsd wnosd nwosd owsnd wosnd oswnd sownd wsond swond onswd noswd osnwd sonwd nsowd snowd wnsod nwsod wsnod swnod nswod snwod
Note: these 'words' (valid or invalid) are all the permutations of the word downs. These words are obtained by scrambling the letters in downs.