It was interesting, though, that the model was able to perform so well, even with only a small percentage of the input.
Most models also forbid embedded words.
I often parse unfamiliar speech passages into non-words such as this, and upon repeated hearings or further thought, suss out the intended words. Oh, right, thanks, I needed reminding of that. Christiansen 1, Pinker 0. Somehow, Parser's success seems a lot more mystical to me than the other models. It's just less intuitive.