Generating Varied Narrative Probability Exercises Mariët Theune author Roan Boer Rookhuiszen author Rieks op den Akker author Hanneke Geerlings author 2011-06 text Proceedings of the Sixth Workshop on Innovative Use of NLP for Building Educational Applications Joel Tetreault editor Jill Burstein editor Claudia Leacock editor Association for Computational Linguistics Portland, Oregon conference publication theune-etal-2011-generating https://aclanthology.org/W11-1403/ 2011-06 20 29