A primary goal of the field of Human-Robot Interaction is to allow for natural human-robot interactions, and thus robot architectures must eventually be able to understand truly natural human speech. And yet, despite the abundance of research devoted to language understanding, most robots capable of participating in linguistic interactions are only able to understand relatively simple utterances (eg, commands), and do not consider those utterances' deeper implications
@inproceedings{williams2015hrip,
title={Towards More Natural Human-Robot Dialogue},
author={Tom Williams},
year={2015},
booktitle={Proceedings of the Human-Robot Interaction (HRI) Pioneers Workshop},
url={https://hrilab.tufts.edu/publications/williams2015hrip.pdf}
}