Mutual dependency and Word Grammar: headedness in the noun phrase Nikolas Gisborne author 2021-12 text Proceedings of the Sixth International Conference on Dependency Linguistics (Depling, SyntaxFest 2021) Nicolas Mazziotta editor Simon Mille editor Association for Computational Linguistics Sofia, Bulgaria conference publication gisborne-2021-mutual https://aclanthology.org/2021.depling-1.5/ 2021-12 47 59