PIP: Parse-Instructed Prefix for Syntactically Controlled Paraphrase Generation Yixin Wan author Kuan-Hao Huang author Kai-Wei Chang author 2023-07 text Findings of the Association for Computational Linguistics: ACL 2023 Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication wan-etal-2023-pip 10.18653/v1/2023.findings-acl.659 https://aclanthology.org/2023.findings-acl.659/ 2023-07 10372 10380