prism rpism pirsm iprsm ripsm irpsm prsim rpsim psrim sprim rspim srpim pisrm ipsrm psirm spirm isprm siprm rispm irspm rsipm sripm isrpm sirpm prims rpims pirms iprms ripms irpms prmis rpmis pmris mpris rmpis mrpis pimrs ipmrs pmirs mpirs imprs miprs rimps irmps rmips mrips imrps mirps prsmi rpsmi psrmi sprmi rspmi srpmi prmsi rpmsi pmrsi mprsi rmpsi mrpsi psmri spmri pmsri mpsri smpri mspri rsmpi srmpi rmspi mrspi smrpi msrpi pismr ipsmr psimr spimr ispmr sipmr pimsr ipmsr pmisr mpisr impsr mipsr psmir spmir pmsir mpsir smpir mspir ismpr simpr imspr mispr smipr msipr rismp irsmp rsimp srimp isrmp sirmp rimsp irmsp rmisp mrisp imrsp mirsp rsmip srmip rmsip mrsip smrip msrip ismrp simrp imsrp misrp smirp msirp
Note: these 'words' (valid or invalid) are all the permutations of the word prism. These words are obtained by scrambling the letters in prism.