Premodifier: negative
Head noun: control

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

Narrower concepts

labelprovenanceconfidence
primary antibodyisap:3460858460.672494
positive controlisap:4377021830.610396
waterisap:2245749830.506201
cellisap:111238970.367197
ncisap:298868650.292547
iggisap:2330446140.263067
eisap:2994366230.138328