acebp caebp aecbp eacbp ceabp ecabp acbep cabep abcep bacep cbaep bcaep aebcp eabcp abecp baecp ebacp beacp cebap ecbap cbeap bceap ebcap becap acepb caepb aecpb eacpb ceapb ecapb acpeb capeb apceb paceb cpaeb pcaeb aepcb eapcb apecb paecb epacb peacb cepab ecpab cpeab pceab epcab pecab acbpe cabpe abcpe bacpe cbape bcape acpbe capbe apcbe pacbe cpabe pcabe abpce bapce apbce pabce bpace pbace cbpae bcpae cpbae pcbae bpcae pbcae aebpc eabpc abepc baepc ebapc beapc aepbc eapbc apebc paebc epabc peabc abpec bapec apbec pabec bpaec pbaec ebpac bepac epbac pebac bpeac pbeac cebpa ecbpa cbepa bcepa ebcpa becpa cepba ecpba cpeba pceba epcba pecba cbpea bcpea cpbea pcbea bpcea pbcea ebpca bepca epbca pebca bpeca pbeca
Note: these 'words' (valid or invalid) are all the permutations of the word acebp. These words are obtained by scrambling the letters in acebp.