type

<xs:attribute name="type">
  <xs:annotation>
    <xs:documentation>specifies a particular kind of purpose. Suggested values include: 1] persuade; 2] express; 3] inform; 4] entertain</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:union>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="persuade">
            <xs:annotation>
              <xs:documentation>didactic, advertising, propaganda, etc.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="express">
            <xs:annotation>
              <xs:documentation>self expression, confessional, etc.</xs:documentation>
            </xs:annotation>
          </xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
      <xs:simpleType>
        <xs:restriction base="xs:token">
          <xs:enumeration value="inform">
            <xs:annotation>
              <xs:documentation>convey information, educate, etc.</xs:documentation>