@prefix sampledescriptionvocabulary1: <https://purls.helmholtz-metadaten.de/skosmos/sdv/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://server/unset-base/> .

sampledescriptionvocabulary1:ChemicalFormula
  skos:prefLabel "Chemical formula" ;
  skos:narrower sampledescriptionvocabulary1:ChemicalElement ;
  skos:definition "A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. (Wikipedia) "^^ns0:None ;
  skos:broader sampledescriptionvocabulary1:MaterialDescription ;
  a skos:Concept .

sampledescriptionvocabulary1:ChemicalElement
  skos:prefLabel "Chemical element" ;
  a skos:Concept ;
  skos:broader sampledescriptionvocabulary1:ChemicalFormula .

sampledescriptionvocabulary1:MaterialDescription
  skos:prefLabel "Material description" ;
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:ChemicalFormula .