use strict;
use WWW::Mechanize;

my $url = "http://www.ai.mit.edu/projects/infolab/";
my $question = 'What is AI';

my $robot = new WWW::Mechanize;

$robot->get($url);
$robot->form_number('1');
$robot->set_fields('query' => $question);  # ask a question
$robot->click();

# Get the reply to my question
my $html = $robot->content();

# Extract the answer
my ($text) = $html =~ /(<H1>START(?:.|\n)*<HR>)/mg;

# Reformat the text
$text =~ s/<[^>]*>//g;              # Strip HTML tags
$text =~ s/(?<!\n)\n(?!\n)/ /mg;    # Combine lines
$text =~ y/ //s;                    # Squash multiple spaces
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my $len;
$text =~ s/((\S+)(?=\n|\s)|\n)/     # Reformat plain text
            if ($1 eq "\n") {       # wrapping at col 60
                $len = 0;
                $1
           } elsif ($len + length($1) > 60) {
                $len = length($1) + 1;
                "\n$1"
           } else {
                $len += length($1) + 1;
                $1
           }
          /mge;
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# after some playing around, I came up with the
# following regex that does wrapping at column
# 60 perfectly. I love perl. ;-)

$text =~ s/(.{50,60}(?<=\s\b))/$1\n/mg;

print "$text\n";
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START's reply

===> What is AI

Artificial Intelligence is the study of the computations
that make it possible to perceive, reason and act.

From the perspective of this definition, artificial
intelligence differs from most of psychology because of the
greater emphasis on computation, and artificial intelligence
differs from most of computer science because of the
emphasis on perception, reasoning and action.

The central goal of the Artificial Intelligence Laboratory
is to develop a computational theory of intelligence
extending from the manifestation of behavior to operations
at the neural level. Current work focuses especially on
understanding the role of vision, language, and motor
computation in general intelligence.
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