Facts are connected in one of two ways — “is” or “has”. On the is side, things are grouped and categorized according to their features. On the has side, those features are spelled out. Has captures details; Is describes patterns derived from those details. Is holds only groups or categories; everything else is Has. In fact, a better way to label these two axes is Is and Everything else. If we were to diagram our facts, we could put Is on the vertical axis and Has (“Everything else”) on the horizontal axis.