The entities and claims behind the work: the customers, products, markets and people the model knows about, and how they relate.
Why look at it
Most of the time you do not. It is useful when you want to know why the system believes something, or to correct a relationship that is producing bad work.
Views
Docs shows the graph as it maps onto your documents. Now shows the current state.
Claims
Claims are statements with provenance. Where two sources disagree, the conflict is recorded rather than silently resolved. See Claims.