@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:Etching
  skos:prefLabel "Etching" ;
  skos:narrower sampledescriptionvocabulary1:ReactiveIonEtching ;
  skos:definition """1. Etching is an intaglio printmaking process in which lines or areas are incised using acid into a metal plate in order to hold the ink. (The Metropolitan Museum of Art). 2. etching, a method of making prints from a metal plate, usually copper, into which the design has been incised by acid. The copperplate is first coated with an acid-resistant substance, called the etching ground, through which the design is drawn with a sharp tool. (Brittanica).
3. The process of chemically removing a thin layer from a sample surface, usually to leave behind a pattern. (TIB, Chemical Methods Ontology)"""^^ns0:None ;
  skos:broader sampledescriptionvocabulary1:SurfaceStructuringMethod, sampledescriptionvocabulary1:MechanicalAndSurfaceTreatmentMethod ;
  a skos:Concept .

sampledescriptionvocabulary1:ReactiveIonEtching
  skos:prefLabel "Reactive ion etching" ;
  a skos:Concept ;
  skos:broader sampledescriptionvocabulary1:Etching .

sampledescriptionvocabulary1:SurfaceStructuringMethod
  skos:prefLabel "Surface structuring method" ;
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:Etching .

sampledescriptionvocabulary1:MechanicalAndSurfaceTreatmentMethod
  skos:prefLabel "Mechanical and surface treatment method" ;
  a skos:Concept ;
  skos:narrower sampledescriptionvocabulary1:Etching .