<transliteration_source xmlns="http://www.sqlparser.com/xml/ansi2003"> <existing_transliteration_name>{1,1}</existing_transliteration_name> <transliteration_routine>{1,1}</transliteration_routine> </transliteration_source>
<xs:element name="transliteration_source"> <xs:complexType> <xs:choice> <xs:element ref="existing_transliteration_name"/> <xs:element ref="transliteration_routine"/> </xs:choice> </xs:complexType> </xs:element>