Hay, Nicholas, Michael Stark, Alexander Schlegel, Carter Wendelken, Dennis Park, Eric Purdy, Tom Silver, D. Scott Phoenix, and Dileep George. “Behavior Is Everything: Towards Representing Concepts With Sensorimotor Contingencies”. Proceedings of the AAAI Conference on Artificial Intelligence 32, no. 1 (April 25, 2018). Accessed October 27, 2021. https://ojs.aaai.org/index.php/AAAI/article/view/11547.