Hi, Ron. I think Griffin tries to get around the problem you pose by knocking out both colors and locations (both spatial and temporal). I think he allows only (configured) batches of simples as atomic facts and only (configured) batches of (real) names as atomic props. Hence, something like "a-b-c-d" Colors are gotten rid of by being physically broken down into configurations of bitzy objects, their particular configuration creating this or that color, and locations, presumably, by space being seen as nothing but a function of relations between objects. So, I take it Griffin thinks (that W thinks) neither an object being red nor an object being here (or now) could be atomic an atomic fact. At least I THINK that's his take.... Best, Walto