BEN: description of the PLUM system as used for MUC-6

This paper provides a quick summary of our technical approach, which has been developing since 1991 and was first fielded in MUC-3. First a quick review of what is new is provided, then a walkthrough of system components. Perhaps most interesting is our analysis, following the walkthrough, of what we learned through MUC-6 and of what directions we would take now to break the performance barriers of current information extraction technology.