| <element name="addressBook" xmlns="http://relaxng.org/ns/structure/1.0"> | |
| <zeroOrMore> | |
| <element name="card"> | |
| <choice> | |
| <element name="name"> | |
| <text/> | |
| </element> | |
| <attribute name="name"> | |
| <text/> | |
| </attribute> | |
| </choice> | |
| <choice> | |
| <element name="email"> | |
| <text/> | |
| </element> | |
| <attribute name="email"> | |
| <text/> | |
| </attribute> | |
| </choice> | |
| </element> | |
| </zeroOrMore> | |
| </element> |