Invalid JSON in tabular data primer

I could be mistaken, but in https://www.w3.org/TR/tabular-data-primer/ the JSON in examples 7, 10, and 18 I think there is a missing comma at the end of the line

  "url": "countries.csv"

Compare with Example 35 and others where the comma is present and the JSON is valid.
Steve Baskauf


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Steven J. Baskauf, Ph.D.
Data Science and Data Curation Specialist
Jean & Alexander Heard Libraries, Vanderbilt University
Nashville, TN 37235, USA

Office: Eskind Biomedical Library, EMB 111
Phone: (615) 343-4582
https://my.vanderbilt.edu/baskauf/