Flexible Composition, Multiple Adjoining and Word Order Variation
Joan Chen-Main, Aravind K. Joshi · 2008
Tree-Local Multi-Component TAGs (called hereafter just MC-TAG for short) are known to be weakly equivalent to standard TAGs, however, they can de-scribe structures not derivable in the standard TAG. There are other variants of MC-TAG, such as MC-TAG with (a) flexible composition and (b) multiple ad-joining of modifier (non-predicative) auxiliary trees that are also weakly equivalent to TAGs, but can describe structures not derivable with MC-TAG. Our main goal in this paper is to deter-mine the word order patterns that can be generated in these MC-TAG variants while respecting semantic dependencies in the grammar and derivation. We use some word order phenomena such as scrambling and clitic climbing to illus-trate our approach. This is not a study of scrambling or clitic climbing per se. We do not claim that the patterns of depend-encies that are derivable are all equally acceptable. Other considerations such as processing will also come into play. However, patterns that are not derivable are predicted to be clearly unacceptable. 1