Instead of %words2ids having key-value pairs like 

word => 'id'

[download]

they could perhaps be more like 

word => [qw{id1 id2}]

[download]

I'm not really across the specifics of what you want. You should supply a sample tagset file, a sample input file, and the expected output using those two files.

My best guess would be changing these lines: 

...
$words2ids{fc $text} = $token;
...
s/$re/++$found{fc $1}, "$1 $words2ids{fc $1}"/eg;
...

[download]

to

...
push @{$words2ids{fc $text}}, $token;
...
s/$re/++$found{fc $1}, "$1 @{$words2ids{fc $1}}"/eg;
...

[download]

You should try this for yourself. If you run into difficulties, put together an SSCCE and post it: along with the two sample files and the expected output, this will give us a much better chance of quickly resolving whatever problems you're encountering.

— Ken

In reply to Re^3: Finding multiword units in a corpus by kcott
in thread Finding multiword units in a corpus by veg_running

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