A few tidbits:
1. The section number 1.4.2.5 is used four times. The second through fourth
consecutive occurrences are obviously meant to be 1.4.2.6, 1.4.2.7, and
1.4.2.8, respectively. I noticed this in the previous version and then I
forgot to say anything about it. My apologies.
2. The (Dx.1) paragraphs (x = 3 .. 8) should probably begin with something
like "If the document is represented using a single XML document, the root