digraph w2 {
  rankdir="TB";
    "input" -> "Excel" [label="format"];
    "input" -> "SiDIF" [label="format"];
    "input" -> "id" [label="hasid"];
    "input" -> "wikitaskoverview" [label="id"];
    "template" -> "Freemarker" [label="format"];
    "template" -> "id" [label="hasid"];
    "template" -> "wikitasktemplate" [label="id"];
    "WikiTask" -> "WikiPage" [label="generates"];
    "WikiPage" -> "input" [label="part"];
    "WikiPage" -> "template" [label="part"];
  }