@prefix theremy: <http://lights.science/theremy> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

theremy: a skos:ConceptScheme .
<http://lights.science/theremy/502081300000000>
  skos:example <https://lights.science/app/search?q=difference-in-difference+method> ;
  a skos:Concept ;
  skos:inScheme theremy: ;
  skos:broader <http://lights.science/theremy/502080000000000> ;
  skos:prefLabel "difference-in-difference method"@en .

<http://lights.science/theremy/502080000000000>
  skos:prefLabel "causal inference"@en ;
  a skos:Concept ;
  skos:narrower <http://lights.science/theremy/502081300000000> .