  x Document
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:1:1]
 1 | ,-> <!DOCTYPE greeting SYSTEM "hello.dtd">
 2 | `-> <root>Text</root>
   `----
  x Child
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:1:1]
 1 | <!DOCTYPE greeting SYSTEM "hello.dtd">
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 2 | <root>Text</root>
   `----
  x DocumentType
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:1:1]
 1 | <!DOCTYPE greeting SYSTEM "hello.dtd">
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 2 | <root>Text</root>
   `----
  x Child
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:2:1]
 1 | <!DOCTYPE greeting SYSTEM "hello.dtd">
 2 | <root>Text</root>
   : ^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:2:1]
 1 | <!DOCTYPE greeting SYSTEM "hello.dtd">
 2 | <root>Text</root>
   : ^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:2:1]
 1 | <!DOCTYPE greeting SYSTEM "hello.dtd">
 2 | <root>Text</root>
   :       ^^^^
   `----
  x Text
   ,-[$DIR/tests/fixture/document_type/system_id/input.xml:2:1]
 1 | <!DOCTYPE greeting SYSTEM "hello.dtd">
 2 | <root>Text</root>
   :       ^^^^
   `----
