<xs:simpleType name="ProductActivityType">
  <xs:annotation>
    <xs:documentation>Fully adopted GS1 classifier: defines the type of activity, for example farming, slaughtering, catch zone</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:NMTOKEN">
    <xs:pattern value="ASSEMBLY"/>
    <!-- The place of assembly -->
    <xs:pattern value="BIRTH"/>
    <!-- The place the animal was born/hatched -->
    <xs:pattern value="BOTTLING"/>
    <!-- The place of bottling -->
    <xs:pattern value="CATCH_ZONE"/>
    <!-- The sea zone in which the seafood in the trade item was caught -->
    <xs:pattern value="FARMING"/>
    <!-- The cultivation place of animals, plants, fungi, and other life forms -->
    <xs:pattern value="IMPORTATION"/>
    <!-- The country from where the trade item has been purchased by the importer -->
    <xs:pattern value="LAST_PROCESSING"/>
    <!-- The country in which the trade item was last processed and tested before importation -->
    <xs:pattern value="MILKING"/>
    <!-- The place of milking -->
    <xs:pattern value="REARING"/>
    <!-- The place of rearing the animal -->
    <xs:pattern value="SLAUGHTER"/>
    <!-- The place the animal was killed to be processed for food or other purposes -->
  </xs:restriction>
</xs:simpleType>