@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:dental_implant_	skos:broader	isac:permanent_method_ .
isac:_sterilization_	skos:broader	isac:permanent_method_ .
isac:_vasectomy_	skos:broader	isac:permanent_method_ .
isac:tubal_ligation_	skos:broader	isac:permanent_method_ .
<http://webisa.webdatacommons.org/concept/half_inch_negative+bolt>	skos:broader	isac:permanent_method_ .