What does "#| ... |#" mean?

Rich Morin <[email protected]> Sat, 28 Jun 2008 09:37:40 -0700

Newsgroups	gmane.comp.ai.powerloom
Message-ID	<p06230969c48c18a221eb@[192.168.1.205]>

The aircraft.plm example contains the code:

  #|
  (defrelation Number-Of-Ac
    :domain Aircraft
    :range Integer
    :is (:satisfies (?X ?Y)
      (Sum
      (:Collect ?Z (:Exists ?W (Fleet-Size ?W ?X ?Z))) ?Y))
    :characteristics (:single-valued :read-only))
  |#

I don't see "#| ... |#" mentioned in the PowerLoom Grammar.
Could someone please explain what it means?

-r
-- 
http://www.cfcl.com/rdm            Rich Morin
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