1. Department of Philosophy, King’s College London, UK. alexander.clark@kcl.ac.uk
2. National Institute of Informatics, Tokyo, Japan. kanazawa@nii.ac.jp
3. Department of Linguistics and Computation Institute, University of Chicago, USA. kobele@uchicago.edu
4. Graduate School of Informatics, Kyoto University, Japan. ry@i.kyoto-u.ac.jp