<http://schema.org/description>
"Thomson, a vacation packager that serves some seven million customers a year in Britain, has admitted that it keeps a blacklist of customers who complain too much. If those grumblers try to book"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2008/10/23/did-you-complain-about-your-last-trip-no-vacation-for-you/1350336/?gen=1>