poist opist piost ipost oipst iopst posit opsit psoit spoit ospit sopit pisot ipsot psiot spiot ispot sipot oispt iospt osipt soipt isopt siopt poits opits piots ipots oipts iopts potis optis ptois tpois otpis topis pitos iptos ptios tpios itpos tipos oitps iotps otips toips itops tiops posti opsti psoti spoti ospti sopti potsi optsi ptosi tposi otpsi topsi pstoi sptoi ptsoi tpsoi stpoi tspoi ostpi sotpi otspi tospi stopi tsopi pisto ipsto psito spito ispto sipto pitso iptso ptiso tpiso itpso tipso pstio sptio ptsio tpsio stpio tspio istpo sitpo itspo tispo stipo tsipo oistp iostp ositp soitp isotp siotp oitsp iotsp otisp toisp itosp tiosp ostip sotip otsip tosip stoip tsoip istop sitop itsop tisop stiop tsiop
Note: these 'words' (valid or invalid) are all the permutations of the word poist. These words are obtained by scrambling the letters in poist.