| <element name="card" xmlns="http://relaxng.org/ns/structure/1.0"> | |
| <element name="name"> | |
| <text/> | |
| </element> | |
| <element name="email"> | |
| <text/> | |
| </element> | |
| <element name="preferredFormat"> | |
| <choice> | |
| <value>html</value> | |
| <value>text</value> | |
| </choice> | |
| </element> | |
| </element> |