  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :             ^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :             ^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                   ^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                   ^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                       ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                       ^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                                    ^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                                    ^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                                        ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/webkit01_dat.47.html:1:1]
 1 | <math><mrow><mrow><mn>1</mn></mrow><mi>a</mi></mrow></math>
   :                                        ^
   `----
