About: proof of delivery

Head noun: proof
Postmodifier: of delivery

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

Broader concepts

label	provenance	confidence
business document	isap:298767101	0.601363
document	isap:298767085	0.377063
information	isap:206978763	0.238663
time	isap:205876430	0.164049

Narrower concepts

label	provenance	confidence
certified mail	isap:95003818	0.578750
return receipt	isap:37312136	0.577643