Corpus tagged with mass/count distinction?

Hi --

I'm wondering if anyone is aware of an English corpus in which 
the annotations distinguish mass nouns from count nouns.  

One possibility is to approximate using WordNet categories,
e.g. treating nouns descended from 'substance' as mass nouns, but I'm
hoping there's a better alternative.

Please reply privately, and I'll post a summary to the list if there's
interest.

Thanks!

  Philip

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  Philip Resnik, Associate Professor
  Department of Linguistics and Institute for Advanced Computer Studies

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