{ "items" : [
    { "id" : "http://dbpedia.org/resource/Twin_bridges"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Twin bridges are a set of two bridges running parallel to each other.  A pair of twin bridges is often referred to collectively as a twin-span or dual-span bridge.  Bridges of this type are often created by building a new bridge parallel to an existing one in order to increase the traffic capacity of the crossing.  While most twin-span bridges consist of two identical bridges, this is not always the case."] } } }
