@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_j0_	skos:broader	isac:bessel_function_ .
isac:_k1_	skos:broader	isac:bessel_function_ .