{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/prov/457884858"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/335939699" ] } },

    { "id" : "http://webisa.webdatacommons.org/335939699"
      "properties" : {
        "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : [ "http://www.w3.org/ns/prov#Entity" ] ,
        "http://www.w3.org/ns/prov#value" : [ "Presentation of ATSDR Screening Process Dr. Karl Markiewicz provided an overview of the three steps of the screening process, which are to determine if: The chemical concentrations are above acceptable screening levels: Determine the important compounds and chemicals, using maximum concentrations in air, soil, water, and biota, particularly in cases of incomplete or missing data." ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "cdc.gov" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/176895943"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/335939699"] } } }
