Defeasible AceRules: A Prototype Martin Diller author Adam Wyner author Hannes Strass author 2017 text Proceedings of the 12th International Conference on Computational Semantics (IWCS) — Long papers Claire Gardent editor Christian Retoré editor conference publication diller-etal-2017-defeasible https://aclanthology.org/W17-6805/ 2017