jammy ajmmy jmamy mjamy amjmy majmy jammy ajmmy jmamy mjamy amjmy majmy jmmay mjmay jmmay mjmay mmjay mmjay ammjy mamjy ammjy mamjy mmajy mmajy jamym ajmym jmaym mjaym amjym majym jaymm ajymm jyamm yjamm ayjmm yajmm jmyam mjyam jymam yjmam myjam ymjam amyjm mayjm aymjm yamjm myajm ymajm jamym ajmym jmaym mjaym amjym majym jaymm ajymm jyamm yjamm ayjmm yajmm jmyam mjyam jymam yjmam myjam ymjam amyjm mayjm aymjm yamjm myajm ymajm jmmya mjmya jmmya mjmya mmjya mmjya jmyma mjyma jymma yjmma myjma ymjma jmyma mjyma jymma yjmma myjma ymjma mmyja mmyja mymja ymmja mymja ymmja ammyj mamyj ammyj mamyj mmayj mmayj amymj maymj aymmj yammj myamj ymamj amymj maymj aymmj yammj myamj ymamj mmyaj mmyaj mymaj ymmaj mymaj ymmaj
Note: these 'words' (valid or invalid) are all the permutations of the word jammy. These words are obtained by scrambling the letters in jammy.