- update to 0.6.5
- This release contains improvements to Shoebox file format support
(by Stuart Robinson and Greg Aumann);
- an implementation of hole semantics (by Peter Wang);
- improvements to lambda calculus and semantic interpretation modules
(by Ewan Klein); a new corpus (Sinica Treebank sample);
- and expanded tutorial discussions of trees, feature-based grammar,
unification, PCFGs, and more exercises.