{ "items" : [
    { "id" : "http://dbpedia.org/resource/Permanente_Metals"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Permanente Metals Company (PMC) managed the Richmond Shipyards, owned by Henry J. Kaiser. These four of the Kaiser Shipyards were known for the construction of Liberty ships.The company was also a major producer of magnesium during World War II."] } } }
