<xs:complexType name="OccupancyType">
    <xs:sequence>
      <xs:element name="interval" minOccurs="0" type="gml:CodeType"/>
      <xs:element name="numberOfOccupants" type="xs:integer"/>
      <xs:element name="occupantType" minOccurs="0" type="gml:CodeType"/>
    </xs:sequence>
  </xs:complexType>