{ "items" : [
    { "id" : "http://dbpedia.org/resource/Second_Industrial_Revolution"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "The Second Industrial Revolution, also known as the Technological Revolution, was a phase of the larger Industrial Revolution roughly corresponding to the later half of the 19th century, sometime between 1840 and 1860 until World War I. It is considered to have begun around the time of the introduction of Bessemer steel in the 1850s and culminated in early factory electrification, mass production and the production line."] } } }
