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use strict;
use warnings;
...
}

print join '', @words[$tags[0] - $prePost .. $#words] if @tags;

__DATA__
Regular expressions have always been a weak spot for me, and I've got 
+a
...
 So my next thought is lookahead/lookbehind, but they don't capture.
 Is there a way to do this with a single regex? Is a regex even the be
+st
 way to do this? Thanks, -Lee

 a weak spot for me, <and> I've got a  question that's
 that's got me stumped. Here's <the> problem I'm trying to solve. 
...
 <is>  more than one term <and> they overlap, <the> nth term will not 
+be
 annotated.  So my next thought <is> lookahead/lookbehind, but they do
+n't capture. 
 regex? Is a regex even <the> best  way to do this?