To quote a children's TV show: "Which ones of these things are not like the other ones?" Some of those are document tools working on language / knowledge. Ot

To quote a children's TV show: "Which ones of these things are not like the other ones?" Some of those are document tools working on language / knowledge. Others are infrastructure, working on ... whatever your infra does, and your infra manages your data (knowledge). If you read their data policies, you'll find they are not the same.