{ "items" : [
    { "id" : "http://dbpedia.org/resource/Concrete_fracture_analysis"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Concrete is widely used construction material all over the world. It is composed of aggregate, cement and water. Composition of concrete varies to suit for different applications desired. Even size of the aggregate can influence mechanical properties of concrete to a great extent."] } } }
