XTAG system - A Wide Coverage Grammar for English
  This paper presents the XTAG system, a grammar development tool based on the Tree Adjoining Grammar (TAG) formalism that includes a wide-coverage syntactic grammar for English. The various components of the system are discussed and preliminary evaluation results from the parsing of various corpora are given. Results from the comparison of XTAG against the IBM statistical parser and the Alvey Natural Language Tool parser are also given. 
Christy Doran, Dania Egedi, Beth Ann Hockey, B. Srinivas, and Martin   Zaidel (University of Pennsylvania)