Corpora and Data Preparation Lynn Carlson author Boyan Onyshkevych author Mary Ellen Okurowski author 1993 text Fifth Message Understanding Conference (MUC-5): Proceedings of a Conference Held in Baltimore, Maryland, August 25-27, 1993 conference publication carlson-etal-1993-corpora https://aclanthology.org/M93-1001/ 1993