Chen Xu Yu Ji Zhenyu Lv Yang Yi Yizhe Yang Luyao Ji Chaoyi Chen Xianyang Wang Tian Lan 0003 Zhihua Wang Juan Wang Xunde Dong Fuze Tian Qunxi Dong Bin Hu 0001 PUPPET: Neural-Symbolic Standardized Patients for Mental Health. 2599-2634 2026 ACL (1) https://aclanthology.org/2026.acl-long.121/ conf/acl/2026-1 db/conf/acl/acl2026-1.html#XuJLYYJCWLWWDTD26