test/relaxng/tutor3_2.rng - third_party/github.com/GNOME/libxml2 - Git at Google

 <element name="card" xmlns="http://relaxng.org/ns/structure/1.0">
   <element name="name">
     <text/>
   </element>
   <element name="email">
     <text/>
   </element>
 </element>
	<element name="card" xmlns="http://relaxng.org/ns/structure/1.0">
	<element name="name">
	<text/>
	</element>
	<element name="email">
	<text/>
	</element>
	</element>