@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:cordless_phone_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .
isac:_building_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .
isac:_noise_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .
isac:fluorescent_lamp_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .
isac:tall_building_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .
isac:ground_clutter_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .
isac:cordless_telephone_	skos:broader	<http://webisa.webdatacommons.org/concept/_source_of+interference> .