1 <element name="card" xmlns="http://relaxng.org/ns/structure/1.0"> 2 <element name="name"> 3 <text/> 4 </element> 5 <element name="email"> 6 <text/> 7 </element> 8 <element name="preferredFormat"> 9 <choice> 10 <value>html</value> 11 <value>text</value> 12 </choice> 13 </element> 14 </element> 15
