{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/concept/road_bed_"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#label" : [ "road bed" ] ,
        "http://webisa.webdatacommons.org/ontology#hasHead" : [ "bed" ] ,
        "http://webisa.webdatacommons.org/ontology#hasPreModifier" : [ "road"] } } }
