I already has posted a link to this my paper in another discussion, but   
   I cannot stay on the temptation to cite it again:   
   http://tanev.dir.bg/EACL06.pdf   
      
   Here we propose a model for representation of linguistic context and   
   use it to learn ontological information. May be will be of interest for   
   you. (It was published on EACL'06 conference)   
      
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