They definitely aren't at 97% but they aren't that bad either. For English they are at around 92% (see for example http://arxiv.org/pdf/1603.04351.pdf http://ar

They definitely aren't at 97% but they aren't that bad either. For English they are at around 92% (see for example http://arxiv.org/pdf/1603.04351.pdf http://arxiv.org/pdf/1603.04351.pdf) in labelled attachment score (right tag+right label). If you are interested only in the syntactic tag, not in the structure of the tree, the number is somewhat higher.