About: duct cleaning

Premodifier: duct
Head noun: cleaning

Same concepts
http://dbpedia.org/resource/Duct_(flow)

Broader concepts

label	provenance	confidence
service	isap:347460407	0.607103
variety of service	isap:341614873	0.547025
product	isap:341250399	0.530994
scam	isap:378499083	0.202608

Narrower concepts

label	provenance	confidence