1 Cell
1:
3 1:
7 (XmlElem about)
3 `- Cell
1:
3 1:
7 (XmlElem title)
5 `- Cell
1:
3 1:
7 (XmlText "sec1")
7 Cell
2:
1 3:
9 (XmlElem section)
9 +- Cell
2:
3 2:
7 (XmlAttr id "sec2")
11 `- Cell
3:
1 3:
9 (XmlElem section)
13 `- Cell
3:
4 3:
9 (XmlAttr id "sec21")