Subject ​	Predicate ​	Object ​	Graph ​
qb:hierarchyRoot http://purl.org/linked-data/cube#hierarchyRoot	rdfs:comment http://www.w3.org/2000/01/rdf-schema#comment	Specifies a root of the hierar ...... ts but must have at least one. @en	http://purl.org/linked-data/cube# http://purl.org/linked-data/cube#