@prefix fmc: <http://data.loterre.fr/ark:/67375/FMC> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

fmc: a skos:ConceptScheme .
fmc:-R4BTDMBQ-C
  skos:broader fmc:-QTVR9QNL-F ;
  skos:hiddenLabel "HPDLC Bragg grating"@en, "holographic phase gratings"@en, "real-time holographic grating"@en, "volume grating"@en ;
  a skos:Concept ;
  skos:altLabel "red holográfica"@es ;
  skos:inScheme fmc: ;
  skos:prefLabel "rejilla holográfica"@es, "holographic grating"@en, "holographischer Gitter"@de, "réseau holographique"@fr .

fmc:-QTVR9QNL-F
  skos:prefLabel "holographisches optisches Element"@de, "holographic optical element"@en, "elemento óptico holográfico"@es, "élément optique holographique"@fr ;
  a skos:Concept ;
  skos:narrower fmc:-R4BTDMBQ-C .