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<TITLE>GIFgraph.pm - example 3-1</TITLE>
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<H1 align="center">GIFgraph.pm - example 3-1</H1>
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<img src="sample31.gif">
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<p align="center"><a href="sample31.pl">The code.</a></p>
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<h5>NOTE</h5>
Notice that the green set doesn't have an entry for the 7th point.
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