The Penn Treebank: Annotating Predicate Argument Structure

By Mitchell P. Marcus, Grace Kim, Mary Ann Marcinkiewicz, R. MacIntyre, Ann Bies, Mark Ferguson, Karen Katz, Britta Schasberger. 1994

The Penn Treebank has recently implemented a new syntactic annotation scheme, designed to highlight aspects of predicate-argument structure. This paper discusses the implementation of crucial aspects of this new annotation scheme. It incorporates a more consistent treatment of a wide range of grammatical phenomena, provides a set of coindexed null elements in what can be thought of as "underlying" position for phenomena such as wh-movement, passive, and the subjects of infinitival constructions, provides some non-context free annotational mechanism to allow the structure of discontinuous constituents to be easily recovered, and allows for a clear, concise tagging system for some semantic roles.

Subfields: Information Extraction

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  1. Nianwen Xue
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  8. Julia Hockenmaier

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