swapt wsapt sawpt aswpt waspt awspt swpat wspat spwat pswat wpsat pwsat sapwt aspwt spawt psawt apswt paswt wapst awpst wpast pwast apwst pawst swatp wsatp sawtp aswtp wastp awstp swtap wstap stwap tswap wtsap twsap satwp astwp stawp tsawp atswp taswp watsp awtsp wtasp twasp atwsp tawsp swpta wspta spwta pswta wpsta pwsta swtpa wstpa stwpa tswpa wtspa twspa sptwa pstwa stpwa tspwa ptswa tpswa wptsa pwtsa wtpsa twpsa ptwsa tpwsa saptw asptw spatw psatw apstw pastw satpw astpw stapw tsapw atspw taspw sptaw pstaw stpaw tspaw ptsaw tpsaw aptsw patsw atpsw tapsw ptasw tpasw wapts awpts wpats pwats apwts pawts watps awtps wtaps twaps atwps tawps wptas pwtas wtpas twpas ptwas tpwas aptws patws atpws tapws ptaws tpaws
Note: these 'words' (valid or invalid) are all the permutations of the word swapt. These words are obtained by scrambling the letters in swapt.