<xs:element name="ageGroup">
  <xs:annotation>
    <xs:documentation xml:lang="en">The age group to which the participant belongs</xs:documentation>
    <xs:appinfo>
      <identifier>http://w3id.org/meta-share/meta-share/ageGroup</identifier>
      <label xml:lang="en">age group</label>
    </xs:appinfo>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:anyURI">
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/adult">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/adult</identifier>
            <label xml:lang="en">adult</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/child">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/child</identifier>
            <label xml:lang="en">child</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/elderly">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/elderly</identifier>
            <label xml:lang="en">elderly</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/teenager">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/teenager</identifier>
            <label xml:lang="en">teenager</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
</xs:element>