Complementarity Use Cases
"viewOf" as the fubndemental underpinning relation (GK)
For me, the relationship I call "viewOf, where "a viewOf b" means that a is a constrained view or version of b (e.g. Luc in Boston is a constrained view of Luc), is the fundamental underpinning on which other kinds of complementarity may be built. As a notion, it's quite easy to understand (if not describe), and is the basic idea which explains relationships between Resopurces/Entities which allows us to make provenance statements with enduring truth, hence tractability for analysis.