[xhtml-mathml-dtd-entity-6.htm]
  [XHTML1.1+MathML parsing ⃜]
    expected: FAIL

  [XHTML1.1+MathML parsing ̑]
    expected: FAIL

  [XHTML1.1+MathML parsing ⃛]
    expected: FAIL

  [XHTML1.1+MathML parsing ⃛]
    expected: FAIL