... rules are stated within the framework; and it should be detailed enough to make the rest of the paper comprehensible 2o Parsing with a GPSG is essentially the same as parsing with any of the other ... analyses directly conceivably be easier to parse with families of fully instantiated rules than with rule schemas with underdetermined feature sets, e.g with (4a) (4b) S -9 S -~ NP [ n u m : sing], ... Sag, I.A., Generalised Phrase Structure Grammar Blackwell, Oxford (in press - 1985) Marcus, M., A Theory of Natural Language Processing PhD thesis, MIT, 1980 Shieber, S.M., Direct Parsing of...