Full Idea
I recommend that a statement of ground be cast in the following 'canonical' form: Its being the case that S consists in nothing more than its being the case that T, U... (where S, T, U... are particular sentences).
Gist of Idea
Grounding relations are best expressed as relations between sentences
Source
Kit Fine (The Question of Realism [2001], 5)
Book Reference
-: 'Philosophers' Imprint' [-], p.15
A Reaction
The point here is that grounding is to be undestood in terms of sentences (and 'its being the case that...'), rather than in terms of objects, properties or relations. Fine thus makes grounding a human activity, rather than a natural activity.