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    { "id" : "http://dbpedia.org/resource/Beam_bridge"
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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. No moments are transferred throughout the support, hence their structural type is known as simply supported.The simplest beam bridge could be a log (see log bridge), a wood plank, or a stone slab (see clapper bridge) laid across a stream. Bridges designed for modern infrastructure will usually be constructed of steel or reinforced concrete, or a combination of both." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/SteamAcrossIowaRiver.JPG?width=300"] } } }
