Sentiment Analysis of Conditional Sentences Ramanathan Narayanan author Bing Liu author Alok Choudhary author 2009-08 text Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Philipp Koehn editor Rada Mihalcea editor Association for Computational Linguistics Singapore conference publication narayanan-etal-2009-sentiment https://aclanthology.org/D09-1019/ 2009-08 180 189