<record>
  <controlfield tag="001">225</controlfield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Policy Model</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Telecommunication Network</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Converged Network</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">RT language</subfield>
  </datafield>
</record>