@inproceedings{ijcai1987p20,
  title     = {Surprisingness and Expectation Failure: What's the Difference?},
  author    = {Ortony, Andrew and Partridge, Derek},
  booktitle = {Proceedings of the Tenth International Joint Conference on
               Artificial Intelligence, {IJCAI-87}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {John McDermott},
  pages     = {106--107},
  year      = {1987},
  note      = {Cognitive Modeling},
  url       = {https://ijcai.org/proceedings/1987/20},
}