@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_device_	skos:broader	isac:external_controller_ .
isac:_computer_	skos:broader	isac:external_controller_ .
isac:_controller_	skos:broader	isac:external_controller_ .
isac:_joystick_	skos:broader	isac:external_controller_ .
isac:_mouse_	skos:broader	isac:external_controller_ .
isac:_gamepad_	skos:broader	isac:external_controller_ .