{ "items" : [
    { "id" : "_:b57757504"
      "properties" : {
        "http://www.w3.org/ns/oa#hasSource" : [ "http://ns.inria.fr/covid19/arg/153724e875eb6657bb79a4a8b6f4249306045c8a/0" ] ,
        "http://www.w3.org/ns/oa#hasSelector" : [ "nodeID://b57757505" ] } },

    { "id" : "_:b57757505"
      "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" : [ "lactate dehydrogenase level"] } } }