In my example, output is in the form of a perl hash(ref) structure. This lets you load it easily in another program using do.

my %seen=();
while(<>)
{
    chomp;
    foreach my $word ( grep /\w/, split )
    {
        $word =~ s/[. ,]*$//; # strip off punctuation, etc.
        $seen{$word}++;
    }
}

use Data::Dumper;
$Data::Dumper::Terse = 1;
print Dumper \%seen;
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For example, given an input file containing:

Click on a letter above to see phrasal verbs beginning with that lette
+r.
You will get a list of phrasal verbs and their definitions. If you the
+n
click on an individual verb, you will get more information on it,
including example sentences, whether it is British or American English
+,
and whether it is separable or not.
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Output looks like:

{
          'you' => 2,
          'a' => 2,
          'not' => 1,
          'that' => 1,
          'sentences' => 1,
          'individual' => 1,
          'see' => 1,
          'on' => 3,
          'American' => 1,
          'or' => 2,
          'verb' => 1,
          'Click' => 1,
          'list' => 1,
          'English' => 1,
          'letter' => 2,
          'their' => 1,
          'whether' => 2,
          'with' => 1,
          'and' => 2,
          'verbs' => 2,
          'of' => 1,
          'is' => 2,
          'definitions' => 1,
          'to' => 1,
          'above' => 1,
          'will' => 2,
          'If' => 1,
          'get' => 2,
          'including' => 1,
          'beginning' => 1,
          'it' => 3,
          'example' => 1,
          'information' => 1,
          'separable' => 1,
          'British' => 1,
          'click' => 1,
          'phrasal' => 2,
          'then' => 1,
          'You' => 1,
          'more' => 1,
          'an' => 1
        }
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