<xsd:complexType name="OML_O21.ORDER.CONTENT"> <xsd:sequence> <xsd:element ref="ORC" minOccurs="1" maxOccurs="1" /> <xsd:element ref="OML_O21.OBSERVATION_REQUEST" minOccurs="0" maxOccurs="1" /> <xsd:element ref="FT1" minOccurs="0" maxOccurs="unbounded" /> <xsd:element ref="CTI" minOccurs="0" maxOccurs="unbounded" /> <xsd:element ref="BLG" minOccurs="0" maxOccurs="1" /> </xsd:sequence> </xsd:complexType>