1 digraph Override {

     2   mindist = 2.0

     3   1 -> 2 [label="group"]

     4   1 -> 2 [label="complexType"]

     5   1 -> 2 [label="annotation"]

     6   1 -> 2 [label="simpleType"]

     7   1 -> 2 [label="element"]

     8   1 -> 2 [label="notation"]

     9   1 -> 2 [label="attribute"]

    10   1 -> 2 [label="attributeGroup"]

    11   2 -> 2 [label="group"]

    12   2 -> 2 [label="complexType"]

    13   2 -> 2 [label="annotation"]

    14   2 -> 2 [label="simpleType"]

    15   2 -> 2 [label="element"]

    16   2 -> 2 [label="notation"]

    17   2 -> 2 [label="attribute"]

    18   2 -> 2 [label="attributeGroup"]

    19   1 [shape=doublecircle, style=filled, color=blue]

    20   2 [shape=doublecircle, style=filled, color=green]

    21 }