@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:downton_abbey_	skos:broader	isac:pbs_programming_ .
isac:sesame_street_	skos:broader	isac:pbs_programming_ .
isac:_nova_	skos:broader	isac:pbs_programming_ .