Tree Insertion Grammar: A Cubic-Time, Parsable Formalism that Lexicalizes Context-Free Grammar without Changing the Trees Produced Yves Schabes author Richard C Waters author 1995 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal schabes-waters-1995-tree https://aclanthology.org/J95-4002/ 1995 21 4 479 513