  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/foreign-fragment_dat.12.fragment_math_annotation-xml.html:1:1]
 1 | </annotation-xml>X
   : ^^^^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/foreign-fragment_dat.12.fragment_math_annotation-xml.html:1:1]
 1 | </annotation-xml>X
   :                  ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/foreign-fragment_dat.12.fragment_math_annotation-xml.html:1:1]
 1 | </annotation-xml>X
   :                  ^
   `----
