@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_sa_	skos:broader	isac:error_source_ .
isac:_error_	skos:broader	isac:error_source_ .
isac:_troposphere_	skos:broader	isac:error_source_ .
isac:_noise_	skos:broader	isac:error_source_ .
isac:_offset_	skos:broader	isac:error_source_ .
<http://webisa.webdatacommons.org/concept/_error_in+the+satellite>	skos:broader	isac:error_source_ .