Complex sentence: The Grammar integrates many notions from contemporary computational linguistics such as feature structures and unification-based language processing, but it uses them in a novel way: rules are considered bi-directional and hence usable both for parsing and production.
Split into simpler sentences: The Grammar integrates many notions from contemporary computational linguistics such as feature structures and unification-based language processing. Rules are considered bi-directional and hence usable both for parsing and production.