[DonaldFisk]

These require a system which either backtracks or recognizes it's made a mistake and corrects it. I know how to do that with a rule-based parser.

It also fails on "British left waffles on Falklands." While there are two syntactic parsers for that, one of them borders on the absurd and should be rejected. The problem is that to parse some sentences requires understanding of the words and phrases it reads, which in turn requires common sense.

[Vivtek]

Well, that is just choosing the semantically correct parse from multiple syntactically correct parses. This parser isn't even finding syntactically correct parses.