Premodifier: water
Head noun: leakage

Same concepts
http://dbpedia.org/resource/Non-revenue_water

Broader concepts

labelprovenanceconfidence
concernisap:4388448680.568054
issueisap:380741210.557875
problemisap:4325549320.496379
common problemisap:4325549770.428202
homeisap:721195870.290268

Narrower concepts

labelprovenanceconfidence
toiletisap:4466277860.234995
bathroomisap:3445194190.193554