{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC6222927#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "American progressive metal musical groups",
          "Musical groups from Los Angeles",
          "American avant-garde metal musical groups",
          "Grammy Award winners",
          "American post-metal musical groups",
          "Tool (band)",
          "Zoo Entertainment (record label) artists",
          "Musical quartets",
          "Volcano Entertainment artists",
          "Art rock musical groups",
          "Musical groups established in 1990",
          "Progressive rock musical groups from California",
          "Heavy metal musical groups from California",
          "American alternative metal musical groups"] } } }
