lpock plock lopck olpck polck oplck lpcok plcok lcpok clpok pclok cplok locpk olcpk lcopk clopk oclpk colpk poclk opclk pcolk cpolk ocplk coplk lpokc plokc lopkc olpkc polkc oplkc lpkoc plkoc lkpoc klpoc pkloc kploc lokpc olkpc lkopc klopc oklpc kolpc poklc opklc pkolc kpolc okplc koplc lpcko plcko lcpko clpko pclko cplko lpkco plkco lkpco klpco pklco kplco lckpo clkpo lkcpo klcpo cklpo kclpo pcklo cpklo pkclo kpclo ckplo kcplo lockp olckp lcokp clokp oclkp colkp lokcp olkcp lkocp klocp oklcp kolcp lckop clkop lkcop klcop cklop kclop ocklp coklp okclp koclp ckolp kcolp pockl opckl pcokl cpokl ocpkl copkl pokcl opkcl pkocl kpocl okpcl kopcl pckol cpkol pkcol kpcol ckpol kcpol ockpl cokpl okcpl kocpl ckopl kcopl
Note: these 'words' (valid or invalid) are all the permutations of the word lpock. These words are obtained by scrambling the letters in lpock.