{ "items" : [
    { "id" : "_:b56458776"
      "properties" : {
        "http://www.w3.org/ns/oa#hasSource" : [ "http://ns.inria.fr/covid19/arg/5051ca4d0c159c2f384074bb5ad4a84254c8ba82/0" ] ,
        "http://www.w3.org/ns/oa#hasSelector" : [ "nodeID://b56458777" ] } },

    { "id" : "_:b56458777"
      "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" : [ "grade 3"] } } }
