yyls yyls ylys lyys ylys lyys yysl yysl ysyl syyl ysyl syyl ylsy lysy ysly syly lsyy slyy ylsy lysy ysly syly lsyy slyy
Note: these 'words' (valid or invalid) are all the permutations of the word yyls. These words are obtained by scrambling the letters in yyls.