{ "items" : [
    { "id" : "http://dbpedia.org/resource/Iron_fertilization"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Iron fertilization is the intentional introduction of iron to the upper ocean to stimulate a phytoplankton bloom. This is intended to enhance biological productivity, which can benefit the marine food chain and is under investigation in hopes of increasing carbon dioxide removal from the atmosphere. Iron is a trace element necessary for photosynthesis in all plants. It is highly insoluble in sea water and is often the limiting nutrient for phytoplankton growth." ] ,
        "http://xmlns.com/foaf/0.1/depiction" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Phytoplankton_SoAtlantic_20060215.jpg" ] ,
        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Phytoplankton_SoAtlantic_20060215.jpg?width=300"] } } }
