<xsd:complexType name="OMG_O19.INSURANCE.CONTENT"> <xsd:sequence> <xsd:element ref="IN1" minOccurs="1" maxOccurs="1" /> <xsd:element ref="IN2" minOccurs="0" maxOccurs="1" /> <xsd:element ref="IN3" minOccurs="0" maxOccurs="1" /> </xsd:sequence> </xsd:complexType>