4 <!ELEMENT tst (#PCDATA)>
5 <!ATTLIST tst a NMTOKENS #IMPLIED>
6 <!ATTLIST tst b CDATA #IMPLIED>
9 <!ENTITY da "
">
12 <tst a="xyz" b=" xyz"/>
13 <tst a="A B" b=" A B "/>
14 <tst a=" A B " b=" A B "/>
15 <tst a="x y" b=" x y "/>
16 <tst a="a b" b=" a b "/>
17 <tst a="a b" b=" a b "/>