epiip peiip eipip iepip pieip ipeip epiip peiip eipip iepip pieip ipeip eiipp ieipp eiipp ieipp iiepp iiepp piiep ipiep piiep ipiep iipep iipep epipi peipi eippi ieppi piepi ipepi eppii pepii eppii pepii ppeii ppeii eippi ieppi epipi peipi ipepi piepi pipei ippei ppiei ppiei ippei pipei epipi peipi eippi ieppi piepi ipepi eppii pepii eppii pepii ppeii ppeii eippi ieppi epipi peipi ipepi piepi pipei ippei ppiei ppiei ippei pipei eiipp ieipp eiipp ieipp iiepp iiepp eipip iepip epiip peiip ipeip pieip eipip iepip epiip peiip ipeip pieip iipep iipep ipiep piiep ipiep piiep piipe ipipe piipe ipipe iippe iippe pipie ippie ppiie ppiie ippie pipie pipie ippie ppiie ppiie ippie pipie iippe iippe ipipe piipe ipipe piipe
Note: these 'words' (valid or invalid) are all the permutations of the word epiip. These words are obtained by scrambling the letters in epiip.