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| <root> |
| <level1> |
| <level2> |
| <level3> |
| <level4> |
| <level5> |
| <level6> |
| <level7> |
| <field1>f4</field1> |
| <field2>f5</field2> |
| <field3>f6</field3> |
| </level7> |
| </level6> |
| </level5> |
| </level4> |
| </level3> |
| </level2> |
| </level1> |
| <level1> |
| <level2> |
| <field1-level2>l2</field1-level2> |
| <level3> |
| <field1-level3>l3</field1-level3> |
| <level4> |
| <field1-level4>l4</field1-level4> |
| <level5> |
| <field1-level5>l5</field1-level5> |
| <level6> |
| <field1-level6>l6</field1-level6> |
| <level7> |
| <field1>f1</field1> |
| <field2>f2</field2> |
| <field3>f3</field3> |
| </level7> |
| </level6> |
| </level5> |
| </level4> |
| </level3> |
| </level2> |
| </level1> |
| </root> |