@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns0: <http://www.agroxml.de/rdf/vocabulary/general#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix metadata_def: <http://data.bioontology.org/metadata/def/> .
@prefix metadata: <http://data.bioontology.org/metadata/> .

ns0:Arsenic
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Boron
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Cadmium
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:ChemicalCompound
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:ChemicalSubstance
    metadata_def:mappingLoom "chemicalsubstance" ;
    metadata_def:mappingSameURI ns0:ChemicalSubstance ;
    metadata_def:prefLabel "ChemicalSubstance" ;
    metadata:prefixIRI "agrordf:ChemicalSubstance" ;
    a owl:Class ;
    rdfs:label "ChemicalSubstance" ;
    rdfs:subClassOf owl:Thing .

ns0:Chromium
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Copper
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Humus
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Lead
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Magnesium
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Manganese
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Mercury
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Nickel
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Nitrogen
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Phosphorus
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Potassium
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Sodium
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Sulfur
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:Zinc
    rdfs:subClassOf ns0:ChemicalSubstance .

ns0:compound
    rdfs:range ns0:ChemicalSubstance .