About: underground economy

Premodifier: underground
Head noun: economy

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

Broader concepts

label	provenance	confidence
problem	isap:438920304	0.605345
activity	isap:45757821	0.577405
thing	isap:34340976	0.555411
service	isap:436555810	0.469479
option	isap:272273876	0.328275
employer	isap:48895538	0.271313
threat	isap:268257562	0.237881

Narrower concepts

label	provenance	confidence
drug dealing	isap:434350590	0.765768
sex work	isap:8393804	0.722345
drug trade	isap:231024142	0.704994
illegal alien	isap:221602491	0.571673
drug	isap:9380932	0.319651
sale of drug	isap:5832350	0.291113
people	isap:448616748	0.222228