@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_pressure_	skos:broader	isac:system_variable_ .
isac:_system_	skos:broader	isac:system_variable_ .
isac:_temperature_	skos:broader	isac:system_variable_ .
isac:_language_	skos:broader	isac:system_variable_ .
isac:_path_	skos:broader	isac:system_variable_ .
isac:_position_	skos:broader	isac:system_variable_ .
isac:_address_	skos:broader	isac:system_variable_ .
isac:_following_	skos:broader	isac:system_variable_ .
isac:path_variable_	skos:broader	isac:system_variable_ .
<http://webisa.webdatacommons.org/concept/_signal_such+as+alarm>	skos:broader	isac:system_variable_ .