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digraph DefaultOpenContent {
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mindist = 2.0
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1 -> 2 [label="annotation"]
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1 -> 3 [label="any"]
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2 -> 3 [label="any"]
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1 [shape=doublecircle, style=filled, color=blue]
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2 [shape=circle, style=filled, color=red]
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3 [shape=doublecircle, style=filled, color=green]
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}