{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC3524436#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Whooping cough",
          "RTT",
          "Vaccine-preventable diseases",
          "States and territories disestablished in 1948",
          "Pediatrics",
          "Divided regions",
          "Northeast Asia",
          "Bacterial diseases",
          "Korea",
          "Disputed territories in Asia",
          "Disorders causing seizures",
          "RTTEM",
          "East Asia",
          "Korean-speaking countries and territories",
          "Former countries in Asia"] } } }
