<owl:Class xmlns="https://folio.openlegalstandard.org/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:v1="http://www.loc.gov/mads/rdf/v1#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" xmlns:folio="https://folio.openlegalstandard.org/" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" rdf:about="https://folio.openlegalstandard.org/RXm7wVUZI5oaEyhIjwN8rL">
  <rdfs:subClassOf rdf:resource="https://folio.openlegalstandard.org/RC3hDYvR4ffxmqJg2F8YGT6"/>
  <rdfs:label>extend_data segment</rdfs:label>
  <skos:definition>"The EXTEND_DATA segment is the child of EXTEND_HEADER segment.  There will be 1 or more EXTEND_DATA segments per EXTEND_HEADER.  

It is not intended that the EXTEND_DATA include a file_item_nbr.

Note that the data definition in this segment is for readability and not formatting.  The EXTEND_DATA elements, ext_name and ext_value appear on the same line, the former as the XML field tag and the latter as the field value, in the EXTEND_HEADER segment.  Each EXTEND_DATA segment may contain multiple rows of data that extend the applicable segment.
"</skos:definition>
</owl:Class>