About: underground river

Premodifier: underground
Head noun: river

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

Broader concepts

label	provenance	confidence
tourist destination in palawan	isap:206406523	0.824313
river	isap:370830332	0.421453

Narrower concepts

label	provenance	confidence
echo river	isap:370830358	0.775029
river styx	isap:90530214	0.694352
aquifer	isap:40629379	0.352200
people	isap:119540100	0.262340