neacp enacp naecp anecp eancp aencp necap encap nceap cneap ecnap cenap nacep ancep ncaep cnaep acnep canep eacnp aecnp ecanp ceanp acenp caenp neapc enapc naepc anepc eanpc aenpc nepac enpac npeac pneac epnac penac napec anpec npaec pnaec apnec panec eapnc aepnc epanc peanc apenc paenc necpa encpa ncepa cnepa ecnpa cenpa nepca enpca npeca pneca epnca penca ncpea cnpea npcea pncea cpnea pcnea ecpna cepna epcna pecna cpena pcena nacpe ancpe ncape cnape acnpe canpe napce anpce npace pnace apnce pance ncpae cnpae npcae pncae cpnae pcnae acpne capne apcne pacne cpane pcane eacpn aecpn ecapn ceapn acepn caepn eapcn aepcn epacn peacn apecn paecn ecpan cepan epcan pecan cpean pcean acpen capen apcen pacen cpaen pcaen
Note: these 'words' (valid or invalid) are all the permutations of the word neacp. These words are obtained by scrambling the letters in neacp.