<https://w3id.org/datamite/pilot/pl/production/1/secondary/amount>	<http://www.w3.org/2000/01/rdf-schema#label>	"null tonnes"^^<http://www.w3.org/2001/XMLSchema#string> .
<https://w3id.org/datamite/pilot/pl/production/1/secondary/amount>	<http://qudt.org/schema/qudt/unit>	<http://qudt.org/vocab/unit/TONNE> .
<https://w3id.org/datamite/pilot/pl/production/1/secondary/amount>	<http://qudt.org/schema/qudt/numericValue>	"null"^^<http://www.w3.org/2001/XMLSchema#decimal> .
<https://w3id.org/datamite/pilot/pl/production/1/secondary/amount>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://qudt.org/schema/qudt/QuantityValue> .