About: first-class mail

Premodifier: first-class
Head noun: mail

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

Broader concepts

label	provenance	confidence
market-dominant product	isap:2359821	0.757080
mail	isap:176411866	0.467676
mail volume	isap:302160036	0.422165
means	isap:92853076	0.387132
price	isap:95231134	0.241057
package	isap:8257844	0.228263

Narrower concepts

label	provenance	confidence
letter	isap:497797960	0.552316
bill payment	isap:72344178	0.427260
postcard	isap:381253707	0.393737