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It is possible that a given record will not have any LC subject headings. In the screenshot below we see a typical example of subject headings in a record. The first 2 lines in the screenshot show two parts of a single subject heading: 650 0 $a Cultural property $x Protection (International law). The number 1 in the ord column tells us that these two subfields are the elements that make up the first subject heading in the record. The second subject heading has 3 separate elements, divided into three subfields: 650 0 ‡a Cultural property ‡x Protection ‡z Europe.
And so on. There are 4 LC subject headings in this record, and numerous other subject terms as well. To find the first subject term in a record, I recommend using that number 1 in the ord field.
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