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# get the data from the web.  Typically this is:
# http://www.sailwx.info/shiptrack/cruiseships.phtml
...
   }
$te->parse($input);

$te = new HTML::TableExtract ( headers => [qw(Ship position)] );

$te = new HTML::TableExtract(headers=>\@headers);

$te = HTML::TableExtract->new( headers => \@headers);