ABSTRACI': SGML achieves a certain degree of context-dependent document processing tluough tllll"ib'*s and linking. These mechanisms 1118 deficient in several respects. To address these defi-ciencies we propose augmenting SGML's LID and 1TTLIST constructs with two new mechanisms, coordillllliora and (role-based) tllll"ibllliora. The latter can be used to specify the resllll of context-dependent processing in a uniform fashion while considerably increasing SGML's expressive power. We illustrate this enhanced power by sketching a specification of (the:result of) document layout that can be encoded in SGML augmented with coordination and attribution.