This article investigates a particular phenomenon of coordination that delivers important clues about the nature of syntactic structures. We call this phenomenon left node blocking – the designation is a play on the related concept of right node raising. Left node blocking provides insight into how syntactic structures are produced and processed. The dependency grammar analysis of the left node blocking phenomenon put forth here focuses on roots in coordinated strings. By acknowledging roots, it is possible to discern what coordination is revealing about syntactic structures. In particular, coordination delivers evidence for relatively flat structures.

中文翻译：

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左节点阻塞1

本文研究了一种特殊的协调现象，它提供了有关句法结构性质的重要线索。我们称这种现象为左节点阻塞——这个名称是对右节点提升相关概念的一种发挥。左节点阻塞提供了对如何生成和处理句法结构的洞察。这里提出的左结点阻塞现象的依存文法分析侧重于协调串的根。通过确认词根，可以辨别出什么协调揭示了句法结构。特别是，协调为相对平坦的结构提供了证据。