{ "items" : [
    { "id" : "_:b57321896"
      "properties" : {
        "http://www.w3.org/ns/oa#hasSource" : [ "http://ns.inria.fr/covid19/arg/02a009e42054081b441d0f4b203679c4b0cae38d/1" ] ,
        "http://www.w3.org/ns/oa#hasSelector" : [ "nodeID://b57321897" ] } },

    { "id" : "_:b57321897"
      "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" : [ "seroconversion"] } } }