1<addressBook>
2<card name="John Smith" email="js@example.com"/>
3<card email="js@example.com" name="John Smith"/>
4<card email="js@example.com"><name>John Smith</name></card>
5<card name="John Smith"><email>js@example.com</email></card>
6<card><name>John Smith</name><email>js@example.com</email></card>
7</addressBook>
8