physdescstructuredtype

<xs:attribute name="physdescstructuredtype" use="required">
  <xs:simpleType>
    <xs:restriction base="xs:token">
      <xs:enumeration value="carrier"/>
      <xs:enumeration value="materialtype"/>
      <xs:enumeration value="spaceoccupied"/>
      <xs:enumeration value="otherphysdescstructuredtype"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>