{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC4477613#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Posttranslational modification",
          "Endosymbiotic events",
          "Protein structure",
          "Homeostasis",
          "Protein targeting",
          "Physiology",
          "Cellular respiration",
          "Proteins",
          "Biology terminology",
          "Gene expression",
          "Mitochondria"] } } }
