<?xml version='1.0' standalone='yes'?> <!DOCTYPE attributes [ <!ELEMENT attributes EMPTY> <!ATTLIST attributes
nmtoken NMTOKEN #IMPLIED nmtokens NMTOKENS #IMPLIED>
<!ENTITY ent “ entity&recursive; ”> <!ENTITY recursive “reference”> ]> <attributes
nmtoken = " &ent; &ent; &ent; " nmtokens = " Test
 this  normalization "
/>