She suggests several simple heuristics for ranking the candidate trees, two of which will be considered here.
the results are very encouraging on several dimensions: 1. overall parsing performance on the test data for both the np-wsjqb and the np-wsjqblq 500 models is very good 2. adding questions from the NLP-Qt yields a desired increase in performance 3. almost two-thirds of all questions from the test data yield a completely correct parse.