@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_group_	skos:broader	isac:group_difference_ .
isac:_number_	skos:broader	isac:group_difference_ .
isac:_interaction_	skos:broader	isac:group_difference_ .
isac:_iq_	skos:broader	isac:group_difference_ .
isac:_difference_	skos:broader	isac:group_difference_ .
isac:_ethnicity_	skos:broader	isac:group_difference_ .
isac:_gender_	skos:broader	isac:group_difference_ .