<http://webisa.webdatacommons.org/concept/power_knob_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"knob" .
<http://webisa.webdatacommons.org/concept/power_knob_>	<http://webisa.webdatacommons.org/ontology#hasPreModifier>	"power" .
<http://webisa.webdatacommons.org/concept/power_knob_>	<http://www.w3.org/2000/01/rdf-schema#label>	"power knob" .