{ "items" : [
    { "id" : "http://dbpedia.org/resource/Carbon_footprint"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "A carbon footprint is historically defined as \"the total sets of greenhouse gas  emissions caused by an organization, event, product or individual.\"The total carbon footprint cannot be calculated because of the large amount of data required and the fact that carbon dioxide can be produced by natural occurrences."] } } }
