{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC7112432#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Immunostimulants",
          "Carbohydrate chemistry",
          "Oncology",
          "Edible thickening agents",
          "Immune system",
          "Starch",
          "Immunology",
          "1840 introductions",
          "Polysaccharides",
          "Maize products",
          "Cancer pathology"] } } }
