The Head-Driven Phrase Structure Grammar (HPSG) is a grammar theory developed by Pollard and Sag (1985). It uses a uniform formalism and is organized in a modular way which makes it attractive for Natural language processing.
... historian (+ 1977)
February 5 - Walter Gross[?], cabaretist (+ 1989)
February 7 - Ernst Ginsberg[?], actor and film director (+ 1964)
February 11 - Henry ...