For example, many different things can be the color red. Likewise, many things sit on surfaces (as in "picture 1", to the right). The property of "redness" and the relation "sitting-on" are therefore abstractions of those objects. Specifically, the conceptual diagram "graph 1" identifies only three boxes, two ellipses, and four arrows (and their six labels), whereas the "picture 1" shows much more pictorial detail, with the scores of implied relationships as implicit in the picture rather than with the nine explicit details in the graph.