Tree Adjunction as Minimalist Lowering Thomas Graf author 2012-09 text Proceedings of the 11th International Workshop on Tree Adjoining Grammars and Related Formalisms (TAG+11) Giorgio Satta editor Chung-Hye Han editor Paris, France conference publication graf-2012-tree https://aclanthology.org/W12-4603/ 2012-09 19 27