That could be true, but field would not be enough, at least in my limited understanding. I can imagine that I'd also want to know which information is retrieved

That could be true, but field would not be enough, at least in my limited understanding. I can imagine that I'd also want to know which information is retrieved through other pieces of information. So lets say `Post -> Comments -> Author -> Avatar`, rather than just `Avatar`. This is important because it shows that whatever I do I should at least support the relation to `Avatar` through `Post -> Comments -> Author`.