item-0 at level 0: unspecified: group _root_
  item-1 at level 1: title: Test Document
    item-2 at level 2: paragraph: 
    item-3 at level 2: section_header: 1 Section 1
  item-4 at level 1: paragraph: 
  item-5 at level 1: paragraph: Paragraph 1.1
  item-6 at level 1: paragraph: 
  item-7 at level 1: paragraph: Paragraph 1.2
  item-8 at level 1: paragraph: 
  item-9 at level 1: section: group header-0
    item-10 at level 2: section: group header-1
      item-11 at level 3: section_header: 1.1 Section 1.1
        item-12 at level 4: paragraph: 
        item-13 at level 4: paragraph: Paragraph 1.1.1
        item-14 at level 4: paragraph: 
        item-15 at level 4: paragraph: Paragraph 1.1.2
        item-16 at level 4: paragraph: 
      item-17 at level 3: section_header: 1.2 Section 1.2
        item-18 at level 4: paragraph: 
        item-19 at level 4: paragraph: Paragraph 1.1.1
        item-20 at level 4: paragraph: 
        item-21 at level 4: paragraph: Paragraph 1.1.2
        item-22 at level 4: paragraph: 
        item-23 at level 4: section_header: 1.2.1 Section 1.2.3
          item-24 at level 5: paragraph: 
          item-25 at level 5: paragraph: Paragraph 1.2.3.1
          item-26 at level 5: paragraph: 
          item-27 at level 5: paragraph: Paragraph 1.2.3.1
          item-28 at level 5: paragraph: 
          item-29 at level 5: paragraph: 
    item-30 at level 2: section_header: 2 Section 2
  item-31 at level 1: paragraph: 
  item-32 at level 1: paragraph: Paragraph 2.1
  item-33 at level 1: paragraph: 
  item-34 at level 1: paragraph: Paragraph 2.2
  item-35 at level 1: paragraph: 
  item-36 at level 1: section: group header-0
    item-37 at level 2: section: group header-1
      item-38 at level 3: section: group header-2
        item-39 at level 4: section_header: 2.1.1 Section 2.1.1
          item-40 at level 5: paragraph: 
          item-41 at level 5: paragraph: Paragraph 2.1.1.1
          item-42 at level 5: paragraph: 
          item-43 at level 5: paragraph: Paragraph 2.1.1.1
          item-44 at level 5: paragraph: 
      item-45 at level 3: section_header: 2.2 Section 2.1
        item-46 at level 4: paragraph: 
        item-47 at level 4: paragraph: Paragraph 2.1.1
        item-48 at level 4: paragraph: 
        item-49 at level 4: paragraph: Paragraph 2.1.2
        item-50 at level 4: paragraph: 
        item-51 at level 4: paragraph: 