Expressive NLG for Next-Generation Learning Environments: Language, Affect, and Narrative James Lester author 2012-05 text INLG 2012 Proceedings of the Seventh International Natural Language Generation Conference Barbara Di Eugenio editor Susan McRoy editor Association for Computational Linguistics Utica, IL conference publication lester-2012-expressive https://aclanthology.org/W12-1502/ 2012-05 2