{ "items" : [
    { "id" : "_:b56159272"
      "properties" : {
        "http://www.w3.org/ns/oa#hasSource" : [ "http://ns.inria.fr/covid19/arg/a8a8d37360e2983cfae4f78a9e55a17765c60f4d/0" ] ,
        "http://www.w3.org/ns/oa#hasSelector" : [ "nodeID://b56159273" ] } },

    { "id" : "_:b56159273"
      "properties" : {
        "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : [ "http://www.w3.org/ns/oa#TextQuoteSelector" ] ,
        "http://www.w3.org/ns/oa#exact" : [ "oxygen therapy"] } } }