digraph {
  rankdir=LR;
  bgcolor=transparent;
  node [shape="box", style="filled,rounded",fontname="sans-serif", fixedsize=true,width=2];

  "DataObject" [fillcolor="#ff000077"];
  "InformationElement" [fillcolor="#00ff0077"];

  "DataObject":n -> "InformationElement":n [color="#777777ff",fontcolor="#777777ff",label="isPartOf",fontsize=10,fontname="sans-serif"];
  "InformationElement":s -> "DataObject":s [color="#777777ff",fontcolor="#777777ff",label="hasPart",fontsize=10,fontname="sans-serif"];
}