Full Idea
Maybe the categories are determined by the different grounding relations, ..so that categories just are the ways things depend on substances. ...Categories are places in the dependence ordering.
Gist of Idea
Maybe categories are just the different ways that things depend on basic substances
Source
Jonathan Schaffer (On What Grounds What [2009], 1.3)
Book Reference
'Metametaphysics', ed/tr. Chalmers/Manley/Wasserman [OUP 2009], p.355