newbs enwbs nwebs wnebs ewnbs wenbs nebws enbws nbews bnews ebnws benws nwbes wnbes nbwes bnwes wbnes bwnes ewbns webns ebwns bewns wbens bwens newsb enwsb nwesb wnesb ewnsb wensb neswb enswb nsewb snewb esnwb senwb nwseb wnseb nsweb snweb wsneb swneb ewsnb wesnb eswnb sewnb wsenb swenb nebsw enbsw nbesw bnesw ebnsw bensw nesbw ensbw nsebw snebw esnbw senbw nbsew bnsew nsbew snbew bsnew sbnew ebsnw besnw esbnw sebnw bsenw sbenw nwbse wnbse nbwse bnwse wbnse bwnse nwsbe wnsbe nswbe snwbe wsnbe swnbe nbswe bnswe nsbwe snbwe bsnwe sbnwe wbsne bwsne wsbne swbne bswne sbwne ewbsn websn ebwsn bewsn wbesn bwesn ewsbn wesbn eswbn sewbn wsebn swebn ebswn beswn esbwn sebwn bsewn sbewn wbsen bwsen wsben swben bswen sbwen
Note: these 'words' (valid or invalid) are all the permutations of the word newbs. These words are obtained by scrambling the letters in newbs.