The rel values in test 0087 are not valid HTML5.
Test 109 is intentionally invalid.
Test 114 has URIs that are intentionally invalid.
Test 131 has invalid character ref (expands to CR)
Test 179, xmlns:foaf is not valid in HTML5.
Test 0180 has prefix that's intentionally invalid.
Test 183, xmlns:foaf is not valid in HTML5.
Test 222 has invalid element nesting.
Test 223 has invalid element nesting.
Test 226 has invalid element nesting.
Test 227 has invalid element nesting.
Test 234 has invalid rel values.
Test 237 has intentionally invalid prefix.
Test 258 has intentionally invalid prefix.
Test 303, "homepage" is not a valid rel value.
Arbitrary "role" values are invalid in HTML5.
a@src is not valid in HTML5.
Test 319, xmlns:xpr not valid in HTML5.
Test 147, xmlns:xmlzzz not valid in HTML5.
Test 285 has intentionally invalid datetime value