{ "items" : [
    { "id" : "http://dbpedia.org/resource/Second-generation_biofuels"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Second generation biofuels, also known as advanced biofuels, are fuels that can be manufactured from various types of biomass.  Biomass is a wide-ranging term meaning any source of organic carbon that is renewed rapidly as part of the carbon cycle. Biomass is derived from plant materials but can also include animal materials.First generation biofuels are made from the sugars and vegetable oils found in arable crops, which can be easily extracted using conventional technology."] } } }
