About: the challenge

Premodifier: the
Head noun: challenge

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

Broader concepts

label	provenance	confidence
big one	isap:486486313	0.511727
idea	isap:152308240	0.226623

Narrower concepts

label	provenance	confidence
climate change	isap:425027213	0.486111