@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_graph_	skos:broader	isac:combinatorial_object_ .
isac:_subset_	skos:broader	isac:combinatorial_object_ .
isac:_function_	skos:broader	isac:combinatorial_object_ .
isac:_permutation_	skos:broader	isac:combinatorial_object_ .
isac:datum_structure_	skos:broader	isac:combinatorial_object_ .
isac:_partition_	skos:broader	isac:combinatorial_object_ .
isac:young_tableau_	skos:broader	isac:combinatorial_object_ .