Hi everyone! Now I have extracted all sentences from htmls to Quotes.txt successfully. My next step is to remove all stopwords (using stopwords.txt) from the quotes.txt, and then count the number of occurrences each word appears and output this list to a text file with the most frequent words appearing at the top of the file. Now I am confused how to remove stopwords./p>

 my $quotes="Quotes.txt";
open(OUTPUT, ">$quotes")||die("Could not open $quotes!");
my $page_num=1;
while ($page_num<=10){
    my $htmlpages="Page$page_num.html";
    open (INPUT,"$htmlpages")||die("Could not open $htmlpages");
    my $line="";
    while ($line=<INPUT>){
    if($line=~m/<span class="text" itemprop="text">(.+?)<\/span/ig){
        my $quotes=$1;
         $quotes =~ s/I'm/I am/ig;
         $quotes =~ s/(\w+?)'re/$1 are/ig;
         $quotes =~ s/(\w+?)'s/$1 is/ig;
         $quotes =~ s/(\w+?)n't/$1 not/ig;
         $quotes =~ s/it's/it is/ig;
         $quotes =~ s/(\w+?)'ll/$1 will/ig;
         $quotes =~ s/I've/I have/ig;
         $quotes =~ s/won't/will not/ig;
         $quotes =~ s/can't/cannot/ig;
         $quotes =~ s/\&\#34;/'/ig;
         $quotes =~ s/\&\#39;/'/ig;
         $quotes =~ s/let's/let us/ig;
         $quotes =~ s/lady's/lady is/ig;
        print OUTPUT "$quotes\n";
        }
    }
    $page_num=$page_num+1;
    close(INPUT);
}
close(OUTPUT);

my $quotes_0="WordCount.txt";
my $quotes_1="Quotes.txt";
open(QUOTES,">$quotes_0")||die("Could not open $quotes_0");
my $stopwords="stopwords.txt";
open(WORDS,"$stopwords")||die("Could not open $stopwords");
open(OLD,"$quotes_1")||die("Could not open $quotes_1");
my $line1="";
while(my $stop=<WORDS>){
    if($stop=~m/(.+?)/ig){
        my $stopwords=$1;
        if ($line1=<OLD>){
        if($line1=~s/\b($stopwords)\b//ig){
        print QUOTES "$line1\n";
         }
    }
    }
}
 close(WORDS);
 close(OLD);
 close(QUOTES);
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