Head noun: hardpan

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

Broader concepts

labelprovenanceconfidence
impervious layerisap:346227810.392404
cement soilisap:752033780.280877
materialisap:467287190.212870
layerisap:346227800.198921
cemented soilisap:752033770.192850
soilisap:752033760.111393

Narrower concepts

labelprovenanceconfidence
placeisap:2298248140.123650