1 <?xml version='1.0' standalone='yes'?> 2 <!DOCTYPE attributes [ 3 <!ELEMENT attributes EMPTY> 4 <!ATTLIST attributes 5 nmtoken NMTOKEN #IMPLIED 6 nmtokens NMTOKENS #IMPLIED> 7 <!ENTITY ent " entity&recursive; "> 8 <!ENTITY recursive "reference"> 9 ]> 10 <attributes 11 nmtoken = " &ent; &ent; &ent; " 12 nmtokens = " Test
 this  normalization " 13 /> 14