Position value increases with distance from lowest reference point in shaft (Absolute) or reference floor number below (Relative).

<xs:element name="Position">
    <xs:annotation>
        <xs:documentation>Position value increases with distance from lowest reference point in shaft (Absolute) or reference floor number below (Relative).</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:choice>
            <xs:element name="Absolute" type="xs:long" />
            <xs:element name="Relative">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="Floor" type="FloorNumber" />
                        <xs:element name="FloorDistance" type="xs:long" />
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
        </xs:choice>
    </xs:complexType>
</xs:element>