{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC2837645#body_text"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Cultural economics",
          "Right-wing populism in the United Kingdom",
          "Livestock",
          "Meat",
          "Domesticated birds",
          "Poultry",
          "Network theory"] } } }
