I'm looking for an actually downloadable Chomsky grammar (preferably a context-free one) capturing as much of the German grammar (on a sentence level) as possible.
I am aware that there is no Chomsky grammar known which represents ALL of the valid German sentences (and I know how much debate is still going on on this topic), but I remember that during my studies in Computer Linguistics, 10 years ago or so, they had powerful context-free grammars which captured "fairly many" of the German sentences correctly. (These are probably not available for free - or even for purchasing.)
It is not really important to me, how big the fraction of correctly parseable sentences is (or even if occasionally incorrect sentences are successfully parsed). I am just searching for a practical way of generating parse trees for the "usual" German sentences.
Is there a way for a non-linguist (and a non-developer of MS-Word's syntax checker ;-) ) to gain access to such a grammar (or related tools)?