@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_market_	skos:broader	isac:difficult_exercise_ .
isac:_exercise_	skos:broader	isac:difficult_exercise_ .
isac:_budget_	skos:broader	isac:difficult_exercise_ .
isac:_lunge_	skos:broader	isac:difficult_exercise_ .