About the Authors

Tao Gong

gtojty@gmail.com

Affiliation Department of Linguistics, University of Hong Kong, Hong Kong

Lan Shuai

Affiliation Department of Chinese, Translation and Linguistics, City University of Hong Kong, Hong Kong

Mónica Tamariz

Affiliation Department of Linguistics and English Language, University of Edinburgh, Edinburgh, United Kingdom

Gerhard Jäger

Affiliation Department of Linguistics, University of Tübingen, Tübingen, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TG LS MT. Performed the experiments: TG. Analyzed the data: TG LS GJ. Contributed reagents/materials/analysis tools: LS GJ. Wrote the paper: TG. Providing the mathematical proof and related statements: GJ.