@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_device_	skos:broader	isac:angle_sensor_ .
isac:_motor_	skos:broader	isac:angle_sensor_ .
isac:_resolver_	skos:broader	isac:angle_sensor_ .