  Note that this actually involves two relations to an object: (i) a reference relation, holding between the subject term of the judgment and the object the judgment is about (its object); and (ii) a correspondence relation, holding between the predicate term of the judgment and a property of the object. Owing to its reliance on the subject-predicate structure of truth-bearing items, the account suffers from an inherent limitation: it does not cover truthbearers that lack subject-predicate structure (e.g. conditionals, disjunctions), and it is not clear how the account might be extended to cover them. The problem is obvious and serious; it was nevertheless simply ignored in most writings. Object-based correspondence was the norm until relatively recently.