About: optical instruments

Premodifier: optical
Head noun: instruments

Same concepts
http://dbpedia.org/resource/Optical_instrument
http://yago-knowledge.org/resource/wikicat_Optical_instruments

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
telescope	isap:666327	0.366159
microscope	isap:315247716	0.247600