<xs:element name="baseItem">
  <xs:annotation>
    <xs:documentation xml:lang="en">Type of item that is represented in the n-gram resource</xs:documentation>
    <xs:appinfo>
      <identifier>http://w3id.org/meta-share/meta-share/baseItem</identifier>
      <label xml:lang="en">base item</label>
    </xs:appinfo>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:anyURI">
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/letter">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/letter</identifier>
            <label xml:lang="en">letter</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/other">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/other</identifier>
            <label xml:lang="en">other</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/phoneme">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/phoneme</identifier>
            <label xml:lang="en">phoneme</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/syllable">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/syllable</identifier>
            <label xml:lang="en">syllable</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="http://w3id.org/meta-share/meta-share/word">
        <xs:annotation>
          <xs:appinfo>
            <identifier>http://w3id.org/meta-share/meta-share/word</identifier>
            <label xml:lang="en">word</label>
          </xs:appinfo>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
</xs:element>