text: SHEXC = "ShEx"
  SHACL_TURTLE = "Shacl"
  
  NT = "nt"
  TSV_SPO = "tsv_spo"
  TURTLE = "turtle"
  TURTLE_ITER = "turtle_iter"
  RDF_XML = "xml"
  N3 = "n3"
  JSON_LD = "json-ld"
  
  JSON = "json"
  FIXED_SHAPE_MAP = "fsm"
  
  RDF_TYPE = "http://www.w3.org/1999/02/22-rdf-syntax-ns#type"
  WIKIDATA_INSTACE_OF = "http://www.wikidata.org/prop/direct/P31"
  
  SHAPES_DEFAULT_NAMESPACE = "http://weso.es/shapes/"
  