[Bug 4793] Restructure section 3.4 to follow the following 1) mapping from syntax to cannonical representation, 2) what constitutues a valid usage and 3) implications on instances.
[Bug 4801] Think about making wording of bullet point 3 (if an SML identity constraint is specified for an element dec. E, then this constraint is applicable...) to be more crisp about the scope
[Bug 4823] In 3.3.6, Replace: If neither of these cases applies, the inter-document reference is to a document not included in the interchange set. Such a reference is called \"an unresolved inter-document reference.\"