Well, I'm answering now... You'd need to change the code to place information about the words that bind the sentences among each other inside the @temp array. This means something like this:

    my %referencedSentences = ();
    foreach my $j (@{$words[$i]}) {
        if (($j ne "$j") || ($j ne "v")) {
            if (exists $sentences->{$j}) {
                %referencedSentences{%j} = $sentences->{$j};
            }
        }
    }
    push (@temp, \%referencedSentences);
[download]

So, to clarify, here is the logical structure of the @temp array:

• @temp contains the sentence no. i at position 2 * i and a hash indexed by words that other sentences start with at position 2 * i + 1. Assume sentence my $sentence = $temp[2 * 10] and its hash my $hash = $temp[2 * 10 + 1]
• The hash contains all words in the sentence that other sentences start with. You can get a list of these words like this: my @listOfWordsOtherSentencesStartWith = keys %{$hash}. Say a word (my $word) belongs to this list of words. Then, $hash->{$word} returns a reference to an array that contains the indices (starting from 0) of all sentences that start with word $word. So to get a list of these sentences, you'd write: my @listOfSentencesThatStartWithThisWord = @{$hash->{$word}}
• To get a list of all sentences referenced by a sentence, you'd write something like

  my @list;
  foreach my $refToIndicesArray (values %{$hash}) {
     push (@list, @{$refToIndicesArray});
  }
  [download]

I hope that answers your questions and good luck with your Perl project. Don't hesitate to ask again, though.

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