1 Region 2 DefTerm 3 Text 4 DefItem 5 Text 6 Block 7 Text 8 DefTerm 9 Text 10 DefItem 11 Text 12 DefItem 13 Text 14 DefItem 15 Text 16 List 17 ListItem 18 Text 19 DefTerm 20 Text 21 DefItem 22 Text 23 Block