@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_field_	skos:broader	<http://webisa.webdatacommons.org/concept/_function_of+multiple+variable> .
isac:_time_	skos:broader	<http://webisa.webdatacommons.org/concept/_function_of+multiple+variable> .