: Boeing, Heinz, Staples, Textron Test : General Electric, General Motors, Gannett, The Home Depot, IBM, Kroger, Sears, UPS Ground truth was created from the entire web, but since the corpus for each company is only a small web snapshot, the experimental results are not similar to extraction tasks like MUC and ACE in that the corpus is not guaranteed to contain the information necessary to build the entire database.
the database constraints presented in this paper provide a more general framework for jointly conditioning multiple relationships.