Evaluating a meta-knowledge annotation scheme for bio-events Raheel Nawaz author Paul Thompson author Sophia Ananiadou author 2010-07 text Proceedings of the Workshop on Negation and Speculation in Natural Language Processing Roser Morante editor Caroline Sporleder editor University of Antwerp Uppsala, Sweden conference publication nawaz-etal-2010-evaluating https://aclanthology.org/W10-3112/ 2010-07 69 77