Appendix D: MUC-7 Information Extraction Task Definition (version 5.1) Nancy Chinchor author Elaine Marsh author 1998 text Seventh Message Understanding Conference (MUC-7): Proceedings of a Conference Held in Fairfax, Virginia, April 29 - May 1, 1998 conference publication chinchor-marsh-1998-appendix https://aclanthology.org/M98-1027/ 1998