@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:black_hole_	skos:broader	<http://webisa.webdatacommons.org/concept/fascinating+physics_research_> .
<http://webisa.webdatacommons.org/concept/_study_of+quantum+mechanic>	skos:broader	<http://webisa.webdatacommons.org/concept/fascinating+physics_research_> .