Enhancing the Expression of Contrast in the SPaRKy Restaurant Corpus David Howcroft author Crystal Nakatsu author Michael White author 2013-08 text Proceedings of the 14th European Workshop on Natural Language Generation Albert Gatt editor Horacio Saggion editor Association for Computational Linguistics Sofia, Bulgaria conference publication howcroft-etal-2013-enhancing https://aclanthology.org/W13-2104/ 2013-08 30 39