About: airworthiness certificate

Premodifier: airworthiness
Head noun: certificate

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

Broader concepts

label	provenance	confidence
aircraft	isap:462536224	0.310218

Narrower concepts

label	provenance	confidence
standard airworthiness certificate	isap:130419502	0.630308