{
   "class" : {
      "rdf:type" : "rdfs:Class",
      "rdfs:comment" : "Quantities such as distance, time, mass, weight, etc. Particular instances of say Mass are entities like '3 kg' or '4 milligrams'.",
      "rdfs:label" : "Quantity",
      "rdfs:subClassOf" : "schema:Intangible"
   },
   "properties" : {}
}