posts opsts psots spots ospts sopts potss optss ptoss tposs otpss topss pstos sptos ptsos tpsos stpos tspos ostps sotps otsps tosps stops tsops posst opsst psost spost ospst sopst posst opsst psost spost ospst sopst pssot spsot pssot spsot sspot sspot osspt sospt osspt sospt ssopt ssopt potss optss ptoss tposs otpss topss posts opsts psots spots ospts sopts ptsos tpsos pstos sptos tspos stpos otsps tosps ostps sotps tsops stops pstso sptso ptsso tpsso stpso tspso pssto spsto pssto spsto sspto sspto ptsso tpsso pstso sptso tspso stpso stspo tsspo sstpo sstpo tsspo stspo ostsp sotsp otssp tossp stosp tsosp osstp sostp osstp sostp ssotp ssotp otssp tossp ostsp sotsp tsosp stosp stsop tssop sstop sstop tssop stsop
Note: these 'words' (valid or invalid) are all the permutations of the word posts. These words are obtained by scrambling the letters in posts.