About: mercury vapor lamp

Premodifier: mercury vapor
Head noun: lamp

Same concepts
http://dbpedia.org/resource/Mercury-vapor_lamp

Broader concepts

label	provenance	confidence
gaseous discharge lamp	isap:173290555	0.817115
negative resistance	isap:190578841	0.618770
light source	isap:302203615	0.578478
source of ultraviolet radiation	isap:302203916	0.476288

Narrower concepts

label	provenance	confidence
lamp	isap:173290501	0.242023