Premodifier: double
Head noun: layer

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

Broader concepts

labelprovenanceconfidence
thingisap:3682218820.574060
multiple layerisap:3705099280.572952

Narrower concepts

labelprovenanceconfidence
layerisap:3705074190.489068
tierisap:909911040.299649
cakeisap:885059720.224457