The Eliza whose output was shown early in this chapter could chat in a general way, and pass comments on topics such as money and computers. The version we will outline here is a little more focused: it will talk to a tourist about London, and is a first step towards our Automated Tourist Guide. After what we have said about Eliza's limitations, you must not expect it to be too useful on its own, but in later chapters it will be combined with more powerful techniques.