1  <?xml version="1.0" standalone="yes"?>
2  <!DOCTYPE attributes [
3  <!ELEMENT attributes EMPTY>
4  <!ATTLIST attributes nmtoken NMTOKEN #IMPLIED>
5  <!ATTLIST attributes nmtokens NMTOKENS #IMPLIED>
6  <!ENTITY ent " entity&recursive; ">
7  <!ENTITY recursive "reference">
8  ]>
9  <attributes nmtoken="&ent; &ent; &ent;" nmtokens="Test&#13;&#10; this normalization"/>