 Moore (1913–14: 376) identified (1) with Russell and Mill (e.g., Russell 1914a, b) and allowed that it might be right. But he favored positions (4) and (5). In (4), sense data stand in a relation to physical objects, called “relation R”, which turns out to be a representational relation (Moore 1925, 1957). In (5), the perceiver is directly aware of a part of the surface of a physical object.