{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC7304761#body_text"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Radiation accidents and incidents",
          "Edsger W. Dijkstra",
          "Software architecture",
          "2013 mergers and acquisitions"] } } }
