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Introduction
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Appendices
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Tree Families in XTAG
Metarules
Introduction
The definition of a metarule in XTAG
Node names, variable instantiation, and matches
Structural Matching
Output Generation
Feature Matching
Examples
The Access to the Metarules through the XTAG Interface
XTAG Project
http://www.cis.upenn.edu/~xtag
