About XTAG
XTAG is a wide-coverage TAG for English developed between 1988–2001 within the
XTAG project located at the University of Pennsylvania.
Preprocessing notice
XTAG has been developed with a metagrammar system different from XMG. The original format of XTAG therefore had to be converted into XMG XML (see
https://github.com/xmg-hhu/xtag2xml).