Good thought. I'm trying to keep the explanation to a minimum, as I don't want to influence the types of requests that I receive. Ideally, people mail a request (whatever they think that to be) to me, and I will respond accordingly. (For example, the request could be a sentence, or JSON, or a doodle, or a picture of a cat, and then the response would be whatever makes sense for the request.) Perhaps I'll add a diagram that outlines the process, so that it's more clear without damaging the creativity of the requests that I hope to receive.