{ "items" : [
    { "id" : "http://dbpedia.org/resource/Decibel"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "The decibel (dB) is a logarithmic unit that expresses the ratio of two values of a physical quantity, often power or intensity. One of these quantities is often a reference value and in this case the decibel expresses the absolute level of the physical quantity. The number of decibels is ten times the logarithm to base 10 of the ratio of two power quantities, or of the ratio of the squares of two field amplitude quantities."] } } }
