About: To run, compile lex.yy.c with ‘-ll’ for MacOS and ‘-lfl’ for Windows. Then run the resulting executable on the file with UPL code inside. This website shows how UPL works. https://gunnhacks-project.sophierong.repl.co/ More about UPL: https://docs.google.com/presentation/d/1FYG6BjtsFEvhPQwMkdQw17HLWGyQlMd5gfwRHQjz0Ms/edit?usp=sharing