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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Peak phosphorus is a concept to describe the point in time at which the maximum global phosphorus production rate is reached and is used in an equivalent way to the better known term peak oil.Phosphorus is a finite (limited) resource on earth which is also relatively scarce and not evenly distributed on the planet." ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Phosphateproductionworldwide.svg?width=300"] } } }
