BBN: Description of the PLUM System as Used forMUC-3 Ralph Weischedel author Damaris Ayuso author Sean Boisen author Robert Ingria author Jeff Palmucci author 1991 text Third Message Understanding Conference (MUC-3): Proceedings of a Conference Held in San Diego, California, May 21-23, 1991 conference publication weischedel-etal-1991-bbn-description https://aclanthology.org/M91-1021/ 1991