後で書く


digraph {
rankdir = BT

subgraph cluster_msyn {
  MetaSig
}

subgraph cluster_syn {
  Sig
}

subgraph cluster_msem {
  MetaClass
  Amb[label="Amb/Def"]
  MetaTarg

  Amb -> MetaClass[label="class-of"]
  Amb -> MetaTarg[label="habitat-of"]
  MetaClass -> MetaTarg[label="U", style=dashed]
}

Sig -> MetaSig[label="meta-signature-of"]
MetaSig -> Amb[label="selected-model-of"]
MetaSig -> MetaClass[label="extension-of"]
MetaSig -> MetaTarg[label="selected-target-of"]

subgraph cluster_sem {
  Targ
  Def
  Inst
  Class

  Class -> Targ[label=U, style=dashed]
  Inst -> Class[label="class-of"]
  Inst -> Targ[label="habitat-of"]
  Def -> Class[label="class-of"]
}

Targ -> Amb[label="object-of"]
Sig -> Class[label="extension-of"]
Sig -> Inst[label="model-of"]
Sig -> Targ[label="selected-target-of"]
Sig -> Def[label="selected-model-of"]

MetaAmb[label="", shape=none]
MetaTarg -> MetaAmb[label="object-of"]

}