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  1. or download this
    #!/usr/bin/perl -slw

...
binmode STDOUT, ':encoding(UTF-8)';
print $graph->as_graphml();
close STDOUT;
  2. or download this
    
<?xml version="1.0" encoding="UTF-8"?>
...
    </edge>
  </graph>
</graphml>
  3. or download this
    #!/usr/bin/perl -slw

...

my $parser = Graph::Easy::Parser->new();
print $parser->from_text('[Bonn]->[Berlin]')->as_ascii();