About: cave system

Premodifier: cave
Head noun: system

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

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
mammoth cave	isap:302059589	0.630181
wind cave national park	isap:309678664	0.480849
cave	isap:302059592	0.345074
grotte di frasassi	isap:481748125	0.321846
stalagmite	isap:253637837	0.234862
level	isap:156897512	0.182853