  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   :                ^^^^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   :                ^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   :                      ^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests9_dat.1.html:1:1]
 1 | <!DOCTYPE html><body><math></math>
   :                      ^^^^^^^^^^^^^
   `----
