...lots of simple examples for which `Ergo' fails...
> I am a neophyte in NLP so I chose pretty simple parsing challenges. =20
> These are the problems which I drew from an undergraduate level class on
> the topic. I was fortunate enough to sit in on a demo from IBM on work
> they're doing with probabilistic phrase grammars which could handle many
> of these types of examples. My unprofessional opinion is that this
> grammar has the same problems that every other basic grammar has.
>
> I'm curious if others think the challenges I posed were reasonable.
> Perhaps someone else can find a class of sentences that this system does
> parse well.=20
>
I tested the demo a few years ago. Short description can still be found
on e.g. dejanews. My experiences were similar to yours. Almost every example
I tried something went terribly wrong. I think it is time to ignore
mr. Brahlich's nonsense.
Gertjan