sentences:  While in high school, he saw output from one of the "guess the animal" pseudo-artificial intelligence (AI) games then popular.He considered implementing a version of the program in BASIC, but once at the Massachusetts Institute of Technology (MIT), instead he implemented it in several dialects of Lisp, including Maclisp.He was a technical contributor to X3J13, the American National Standards Institute (ANSI) subcommittee that standardized Common Lisp and contributed to the design of the programming language.