  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   :                ^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   :                ^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   :                   ^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   :                   ^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   :                             ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/tests19_dat.82.html:1:1]
 1 | <!doctype html><p><math></p>a
   :                             ^
   `----
