About: necessary product

Premodifier: necessary
Head noun: product

Same concepts
http://dbpedia.org/resource/Surplus_product

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
plumbing fixture	isap:428662764	0.621600
food	isap:2902348	0.567506
water	isap:229394736	0.386889
oil	isap:231937940	0.250490