@article{cantheenvironmentspeakforitselft2grpoatu,
  title = {Can the Environment Speak for Itself? $T^{2}$-GRPO: A Turn-Trajectory Group Relative Policy Optimization for Caregiver Agents},
  author = {Yutong Song and Jiang Wu and Pengfei Zhang and Wenjun Huang and Honghui Xu and Nikil Dutt and Amir M. Rahmani},
  year = {2026},
  eprint = {2606.08875},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.08875},
}