@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:visual_basic_	skos:broader	isac:programming_topic_ .
isac:design_pattern_	skos:broader	isac:programming_topic_ .
isac:extreme_programming_	skos:broader	isac:programming_topic_ .