{:create [
  {:ref ct1 :label "BrandType" :node { :name "type A" :desc "This is a description"}}
  {:ref ct2 :label "BrandType" :node { :name "type B" :desc "This is a description"}}
  {:ref ct3 :label "BrandType" :node { :name "type C" :desc "This is a description"}}
  ]
:link [
  {:ref ctl1 :label "BrankLink" :name "isLinkedTo" :nodeA ct1 :nodeB ct2}
  {:ref ctl2 :label "BrankLink" :name "isLinkedTo" :nodeA ct1 :nodeB ct3}
  {:ref ctl3 :label "BrankLink" :name "isLinkedTo" :nodeA ct2 :nodeB ct3}
]
}