~cpp 
#!/usr/bin/perl

use LWP 5.65;
use URI::URL;

my $debug=0;
my $query = $ARGV[0];

print $query."\n";
my $close_counter=0;
while(1)
{
    $query =~ m/\ (.*?)$/;
    print "last_word :".$1."\n" if $debug;
    $query = query_word($query);
    unless($query)
    {
   $query = $1;   
   $close_counter++;
   if($close_counter>1) { exit; }
    }
    else
    {
   print $query."\n";
   $query = $1." ".$query;
   $close_counter=0;
    }
}

sub query_word
{
    my $q = $_[0];
    $q = '" '.$q.' "';
    my $unencoded_url = 'http://www.google.com/search?hl=ko&num=10&q='.$q;
    my $url = URI::URL->new($unencoded_url);

    print "unencoded: " . $unencoded_url ."\n" if $debug;
    print "encoded: " . $url->as_string . "\n" if $debug;

    my $browser = LWP::UserAgent->new();
    my $response = $browser->get($url->as_string, 'User-Agent'=>'Mozilla' );
    if($response->is_success)
    {
   my $res = $response->content;
   $res =~ s/<b>//gs;
   $res =~ s/<\/b>//gs;
   $res =~ s/\n//gs;
   print "Response:\n$res\n" if $debug;
   #$res =~ m/<\/a><br><font size=-1>(.*?)<br><font color=#008000>/i;
   my @next_words = ();
   while($res=~m/<\/a><br><font size=-1>(.*?)<br><font color=#008000>/g)
   {
       print $1."\n\n" if $debug;
       my $s = $1;
       my $next_word = get_next_words($s,$q);
       if ($next_word) {push(@next_words,$next_word);}
       pos($res)+1;
   }
   print "@next_words ".($#next_words+1)."\n" if $debug;
   my $select = rand($#next_words+1);
   print "selected :".$next_words[$select]."\n" if $debug;
   return $next_words[$select];
    }
    else
    {
   print $response->error_as_HTML if $debug;
    }
}

sub get_next_words
{
    my($text,$q) = @_;
    $q =~ s/"//g;
    print "query :".$q."\n" if $debug;
    $text =~ s/[a-zA-Z_&#|;:<>,?.~\*\^\$\[\]\-\+()\/=]//g;
    print "text :".$text."\n" if $debug;
    $text =~ m/($q)(\S*?)\ /;
    print "match 1 |".$1."| 2 |".$2."| 3 |".$3."| 4 |".$4."|\n" if $debug;
    return $2;
}