About: mass transit system

Premodifier: mass transit
Head noun: system

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

Broader concepts

label	provenance	confidence
high-profile target	isap:393763305	0.766124
infrastructure project	isap:445226336	0.588328
service	isap:443533738	0.583888
government	isap:19677925	0.414434
infrastructure	isap:472018870	0.361901
mess	isap:490694389	0.297399

Narrower concepts

label	provenance	confidence
light rail	isap:300560450	0.825490
street car	isap:209993411	0.737684
bus	isap:211492734	0.664549
new york city subway	isap:388676379	0.657589
rail	isap:300560448	0.627886
subway	isap:388676372	0.612789
metro	isap:154778527	0.605893
railroad	isap:480025226	0.508736
train	isap:158855120	0.489509
tram	isap:310845963	0.439319
monorail	isap:484594735	0.429257
people	isap:385927264	0.188820