{"@context":"https://schema.org","@type":"Class","@id":"https://schema.org/Quantity","rdfs:label":"Quantity","rdfs:comment":"Quantities such as distance, time, mass, weight, etc. Particular instances of say Mass are strings like '3 kg' or '4 milligrams'.","rdfs:subClassOf":[],"schema:properties":[],"schema:subTypes":["Distance","Duration","Energy","Mass"]}